diff --git a/README.md b/README.md
index a2d71f349..2e82e3da1 100644
--- a/README.md
+++ b/README.md
@@ -57,9 +57,9 @@ Better use a one definition with single pattern, to make your tests more precise
 
 <br>
 
-### 2. Find duplicated masks (`duplicated-masks`)
+### 2. Find duplicated patterns (`duplicated-patterns`)
 
-Same as services, there should be unique definition masks:
+Same as services, there should be unique definition patterns:
 
 ```php
 use Behat\Step\When;
diff --git a/src/DefinitionPatternsExtractor.php b/src/DefinitionPatternsExtractor.php
index e6ed4a3cf..d373b4daa 100644
--- a/src/DefinitionPatternsExtractor.php
+++ b/src/DefinitionPatternsExtractor.php
@@ -35,17 +35,17 @@ public function __construct(
      */
     public function extract(array $contextFiles): PatternCollection
     {
-        $masks = [];
+        $patterns = [];
 
-        $classMethodContextDefinitions = $this->resolveMasksFromFiles($contextFiles);
+        $classMethodContextDefinitions = $this->resolvePatternsFromFiles($contextFiles);
 
         foreach ($classMethodContextDefinitions as $classMethodContextDefinition) {
-            $rawMask = $classMethodContextDefinition->getMask();
+            $rawPattern = $classMethodContextDefinition->getPattern();
 
             // @todo edge case - handle next
-            if (str_contains($rawMask, ' [:')) {
-                $masks[] = new SkippedPattern(
-                    $rawMask,
+            if (str_contains($rawPattern, ' [:')) {
+                $patterns[] = new SkippedPattern(
+                    $rawPattern,
                     $classMethodContextDefinition->getFilePath(),
                     $classMethodContextDefinition->getMethodLine(),
                     $classMethodContextDefinition->getClass(),
@@ -55,9 +55,9 @@ public function extract(array $contextFiles): PatternCollection
             }
 
             // regex pattern, handled else-where
-            if (PatternAnalyzer::isRegex($rawMask)) {
-                $masks[] = new RegexPattern(
-                    $rawMask,
+            if (PatternAnalyzer::isRegex($rawPattern)) {
+                $patterns[] = new RegexPattern(
+                    $rawPattern,
                     $classMethodContextDefinition->getFilePath(),
                     $classMethodContextDefinition->getMethodLine(),
                     $classMethodContextDefinition->getClass(),
@@ -66,11 +66,11 @@ public function extract(array $contextFiles): PatternCollection
                 continue;
             }
 
-            // handled in mask one
-            if (PatternAnalyzer::isValuePattern($rawMask)) {
-                //  if (str_contains($rawMask, ':')) {
-                $masks[] = new NamedPattern(
-                    $rawMask,
+            // handled in pattern one
+            if (PatternAnalyzer::isValuePattern($rawPattern)) {
+                //  if (str_contains($rawPattern, ':')) {
+                $patterns[] = new NamedPattern(
+                    $rawPattern,
                     $classMethodContextDefinition->getFilePath(),
                     $classMethodContextDefinition->getMethodLine(),
                     $classMethodContextDefinition->getClass(),
@@ -79,11 +79,11 @@ public function extract(array $contextFiles): PatternCollection
                 continue;
             }
 
-            // remove \/ escape from mask
-            $rawMask = str_replace('\/', '/', $rawMask);
+            // remove \/ escape from pattern
+            $rawPattern = str_replace('\/', '/', $rawPattern);
 
-            $masks[] = new ExactPattern(
-                $rawMask,
+            $patterns[] = new ExactPattern(
+                $rawPattern,
                 $classMethodContextDefinition->getFilePath(),
                 $classMethodContextDefinition->getMethodLine(),
                 $classMethodContextDefinition->getClass(),
@@ -91,14 +91,14 @@ public function extract(array $contextFiles): PatternCollection
             );
         }
 
-        return new PatternCollection($masks);
+        return new PatternCollection($patterns);
     }
 
     /**
      * @param SplFileInfo[] $fileInfos
      * @return ContextDefinition[]
      */
-    private function resolveMasksFromFiles(array $fileInfos): array
+    private function resolvePatternsFromFiles(array $fileInfos): array
     {
         $classMethodContextDefinitions = [];
 
@@ -123,14 +123,14 @@ private function resolveMasksFromFiles(array $fileInfos): array
             $className = $class->namespacedName->toString();
 
             foreach ($class->getMethods() as $classMethod) {
-                $rawMasks = $this->classMethodPatternResolver->resolve($classMethod);
+                $rawPatterns = $this->classMethodPatternResolver->resolve($classMethod);
 
-                foreach ($rawMasks as $rawMask) {
+                foreach ($rawPatterns as $rawPattern) {
                     $classMethodContextDefinitions[] = new ContextDefinition(
                         $fileInfo->getRealPath(),
                         $className,
                         $classMethod->name->toString(),
-                        $rawMask,
+                        $rawPattern,
                         $classMethod->getStartLine()
                     );
                 }
diff --git a/src/Reporting/PatternCollectionStatsPrinter.php b/src/Reporting/PatternCollectionStatsPrinter.php
index d782bdae7..be46d2f20 100644
--- a/src/Reporting/PatternCollectionStatsPrinter.php
+++ b/src/Reporting/PatternCollectionStatsPrinter.php
@@ -25,27 +25,27 @@ public function print(PatternCollection $patternCollection): void
         $this->outputPrinter->writeln(sprintf(' * %d /regex/', $patternCollection->countByType(RegexPattern::class)));
         $this->outputPrinter->writeln(sprintf(' * %d :named', $patternCollection->countByType(NamedPattern::class)));
 
-        $this->printSkippedMasks($patternCollection);
+        $this->printSkippedPatterns($patternCollection);
     }
 
-    private function printSkippedMasks(PatternCollection $patternCollection): void
+    private function printSkippedPatterns(PatternCollection $patternCollection): void
     {
-        $skippedMasks = $patternCollection->byType(SkippedPattern::class);
-        if ($skippedMasks === []) {
+        $skippedPatterns = $patternCollection->byType(SkippedPattern::class);
+        if ($skippedPatterns === []) {
             return;
         }
 
-        $skippedMasksValues = [];
-        foreach ($skippedMasks as $skippedMask) {
-            $skippedMasksValues[] = $skippedMask->pattern;
+        $skippedPatternsValues = [];
+        foreach ($skippedPatterns as $skippedPattern) {
+            $skippedPatternsValues[] = $skippedPattern->pattern;
         }
 
-        $skippedMasksString = implode('", "', $skippedMasksValues);
+        $skippedPatternsString = implode('", "', $skippedPatternsValues);
 
         $this->outputPrinter->writeln(sprintf(
             ' * %d skipped ("%s")',
             $patternCollection->countByType(SkippedPattern::class),
-            $skippedMasksString
+            $skippedPatternsString
         ));
     }
 }
diff --git a/src/Resolver/ClassMethodPatternResolver.php b/src/Resolver/ClassMethodPatternResolver.php
index d1fa2c104..53a34ceb8 100644
--- a/src/Resolver/ClassMethodPatternResolver.php
+++ b/src/Resolver/ClassMethodPatternResolver.php
@@ -27,7 +27,7 @@ public function resolve(ClassMethod $classMethod): array
             preg_match_all(self::INSTRUCTION_DOCBLOCK_REGEX, $classMethod->getDocComment()->getText(), $match);
 
             foreach ($match['instruction'] as $instruction) {
-                $rawPatterns[] = $this->clearMask($instruction);
+                $rawPatterns[] = $this->clearPattern($instruction);
             }
         }
 
@@ -53,12 +53,12 @@ public function resolve(ClassMethod $classMethod): array
         return $rawPatterns;
     }
 
-    private function clearMask(string $mask): string
+    private function clearPattern(string $pattern): string
     {
-        $mask = trim($mask);
+        $pattern = trim($pattern);
 
-        // clear extra quote escaping that would cause miss-match with feature masks
-        $mask = str_replace('\\\'', "'", $mask);
-        return str_replace('\\/', '/', $mask);
+        // clear extra quote escaping that would cause miss-match with feature patterns
+        $pattern = str_replace('\\\'', "'", $pattern);
+        return str_replace('\\/', '/', $pattern);
     }
 }
diff --git a/src/Rule/DuplicatedContextDefinitionContentsRule.php b/src/Rule/DuplicatedContextDefinitionContentsRule.php
index 2d22fcf3f..1f8a3cc6f 100644
--- a/src/Rule/DuplicatedContextDefinitionContentsRule.php
+++ b/src/Rule/DuplicatedContextDefinitionContentsRule.php
@@ -40,10 +40,10 @@ public function process(
         $duplicatedContextDefinitionByContentsHash = $this->filterOutNotDuplicated($contextDefinitionByContentHash);
 
         foreach ($duplicatedContextDefinitionByContentsHash as $duplicatedContextDefinition) {
-            $maskStrings = '';
+            $patternStrings = '';
             $lineFilePaths = [];
             foreach ($duplicatedContextDefinition as $contextDefinition) {
-                $maskStrings .= ' * ' . $contextDefinition->getMask() . "\n";
+                $patternStrings .= ' * ' . $contextDefinition->getPattern() . "\n";
                 $lineFilePaths[] = $contextDefinition->getFilePath() . ':' . $contextDefinition->getMethodLine();
             }
 
@@ -51,10 +51,10 @@ public function process(
             sort($lineFilePaths);
 
             $errorMessage = sprintf(
-                'These %d definitions have different masks, but same method body: %s%s',
+                'These %d definitions have different patterns, but same method body: %s%s',
                 count($duplicatedContextDefinition),
                 PHP_EOL,
-                $maskStrings
+                $patternStrings
             );
 
             $ruleErrors[] = new RuleError($errorMessage, $lineFilePaths, $this->getIdentifier());
diff --git a/src/Rule/DuplicatedMaskRule.php b/src/Rule/DuplicatedPatternRule.php
similarity index 79%
rename from src/Rule/DuplicatedMaskRule.php
rename to src/Rule/DuplicatedPatternRule.php
index 4b93a18c2..0bfbb256b 100644
--- a/src/Rule/DuplicatedMaskRule.php
+++ b/src/Rule/DuplicatedPatternRule.php
@@ -12,7 +12,7 @@
 use Rector\Behastan\ValueObject\RuleError;
 use Symfony\Component\Finder\SplFileInfo;
 
-final readonly class DuplicatedMaskRule implements RuleInterface
+final readonly class DuplicatedPatternRule implements RuleInterface
 {
     public function __construct(
         private ContextDefinitionsAnalyzer $classMethodContextDefinitionsAnalyzer
@@ -30,17 +30,17 @@ public function process(
         PatternCollection $patternCollection,
         string $projectDirectory
     ): array {
-        // 1. find duplicated masks, e.g. if 2 methods have the same mask, its a race condition problem
+        // 1. find duplicated patterns, e.g. if 2 methods have the same pattern, its a race condition problem
         $classMethodContextDefinitions = $this->classMethodContextDefinitionsAnalyzer->resolve($contextFiles);
 
-        $groupedByMask = [];
+        $groupedByPattern = [];
         foreach ($classMethodContextDefinitions as $classMethodContextDefinition) {
-            $groupedByMask[$classMethodContextDefinition->getMask()][] = $classMethodContextDefinition;
+            $groupedByPattern[$classMethodContextDefinition->getPattern()][] = $classMethodContextDefinition;
         }
 
         $ruleErrors = [];
 
-        foreach ($groupedByMask as $mask => $sameMaksClassMethodContextDefinitions) {
+        foreach ($groupedByPattern as $pattern => $sameMaksClassMethodContextDefinitions) {
             /** @var ContextDefinition[] $sameMaksClassMethodContextDefinitions */
             if (count($sameMaksClassMethodContextDefinitions) === 1) {
                 continue;
@@ -52,8 +52,8 @@ public function process(
             }
 
             $ruleErrors[] = new RuleError(sprintf(
-                'Duplicated mask "%s"',
-                $mask
+                'Duplicated pattern "%s"',
+                $pattern
             ), $lineFilePaths, $this->getIdentifier());
         }
 
diff --git a/src/Rule/UnusedContextDefinitionsRule.php b/src/Rule/UnusedContextDefinitionsRule.php
index 1fec97c3b..092eb3968 100644
--- a/src/Rule/UnusedContextDefinitionsRule.php
+++ b/src/Rule/UnusedContextDefinitionsRule.php
@@ -29,21 +29,21 @@ public function process(
         PatternCollection $patternCollection,
         string $projectDirectory
     ): array {
-        $unusedMasks = $this->unusedDefinitionsAnalyzer->analyse($contextFiles, $featureFiles, $patternCollection);
+        $unusedPatterns = $this->unusedDefinitionsAnalyzer->analyse($contextFiles, $featureFiles, $patternCollection);
 
         $ruleErrors = [];
 
-        foreach ($unusedMasks as $unusedMask) {
+        foreach ($unusedPatterns as $unusedPattern) {
             $errorMessage = sprintf(
-                'The mask "%s" and its definition %s::%s() is never used',
-                $unusedMask->pattern,
-                $unusedMask->className,
-                $unusedMask->methodName
+                'The pattern "%s" and its definition %s::%s() is never used',
+                $unusedPattern->pattern,
+                $unusedPattern->className,
+                $unusedPattern->methodName
             );
 
             $ruleErrors[] = new RuleError(
                 $errorMessage,
-                [$unusedMask->filePath . ':' . $unusedMask->line],
+                [$unusedPattern->filePath . ':' . $unusedPattern->line],
                 $this->getIdentifier()
             );
         }
diff --git a/src/ValueObject/ContextDefinition.php b/src/ValueObject/ContextDefinition.php
index 0cf61366f..c257665cf 100644
--- a/src/ValueObject/ContextDefinition.php
+++ b/src/ValueObject/ContextDefinition.php
@@ -12,7 +12,7 @@ public function __construct(
         private readonly string $filePath,
         private readonly string $class,
         private readonly string $methodName,
-        private readonly string $mask,
+        private readonly string $pattern,
         private readonly int $methodLine
     ) {
     }
@@ -32,9 +32,9 @@ public function getMethodName(): string
         return $this->methodName;
     }
 
-    public function getMask(): string
+    public function getPattern(): string
     {
-        return $this->mask;
+        return $this->pattern;
     }
 
     public function getMethodLine(): int
@@ -49,7 +49,7 @@ public function recordUsage(array $featureInstructions): void
     {
         $usageCount = 0;
         foreach ($featureInstructions as $featureInstruction) {
-            if ($this->mask === $featureInstruction) {
+            if ($this->pattern === $featureInstruction) {
                 ++$usageCount;
             }
         }
diff --git a/src/ValueObject/PatternCollection.php b/src/ValueObject/PatternCollection.php
index a5434a4ee..a93f73c27 100644
--- a/src/ValueObject/PatternCollection.php
+++ b/src/ValueObject/PatternCollection.php
@@ -9,10 +9,10 @@
 final readonly class PatternCollection
 {
     /**
-     * @param AbstractPattern[] $masks
+     * @param AbstractPattern[] $patterns
      */
     public function __construct(
-        private array $masks
+        private array $patterns
     ) {
     }
 
@@ -21,13 +21,13 @@ public function __construct(
      */
     public function countByType(string $type): int
     {
-        $masksByType = $this->byType($type);
-        return count($masksByType);
+        $patternsByType = $this->byType($type);
+        return count($patternsByType);
     }
 
     public function count(): int
     {
-        return count($this->masks);
+        return count($this->patterns);
     }
 
     /**
@@ -35,17 +35,17 @@ public function count(): int
      */
     public function all(): array
     {
-        return $this->masks;
+        return $this->patterns;
     }
 
     /**
-     * @template TMask as AbstractPattern
+     * @template TPattern as AbstractPattern
      *
-     * @param class-string<TMask> $type
-     * @return TMask[]
+     * @param class-string<TPattern> $type
+     * @return TPattern[]
      */
     public function byType(string $type): array
     {
-        return array_filter($this->masks, fn (AbstractPattern $pattern): bool => $pattern instanceof $type);
+        return array_filter($this->patterns, fn (AbstractPattern $pattern): bool => $pattern instanceof $type);
     }
 }
diff --git a/tests/Analyzer/UnusedDefinitionsAnalyzer/Fixture/UnusedPattern/BehatContext.php b/tests/Analyzer/UnusedDefinitionsAnalyzer/Fixture/UnusedPattern/BehatContext.php
index cd7151a6e..b6085c901 100644
--- a/tests/Analyzer/UnusedDefinitionsAnalyzer/Fixture/UnusedPattern/BehatContext.php
+++ b/tests/Analyzer/UnusedDefinitionsAnalyzer/Fixture/UnusedPattern/BehatContext.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Rector\Behastan\Tests\Analyzer\UnusedDefinitionsAnalyzer\Fixture\UnusedMasks;
+namespace Rector\Behastan\Tests\Analyzer\UnusedDefinitionsAnalyzer\Fixture\UnusedPattern;
 
 final class BehatContext
 {
diff --git a/tests/Analyzer/UnusedDefinitionsAnalyzer/UnusedDefinitionsAnalyzerTest.php b/tests/Analyzer/UnusedDefinitionsAnalyzer/UnusedDefinitionsAnalyzerTest.php
index e13abdc8c..dea0f280a 100644
--- a/tests/Analyzer/UnusedDefinitionsAnalyzer/UnusedDefinitionsAnalyzerTest.php
+++ b/tests/Analyzer/UnusedDefinitionsAnalyzer/UnusedDefinitionsAnalyzerTest.php
@@ -53,14 +53,14 @@ public function testFoundPattern(): void
 
         $patternCollection = $this->definitionPatternsExtractor->extract($contextFiles);
 
-        $unusedMasks = $this->unusedDefinitionsAnalyzer->analyse($contextFiles, $featureFiles, $patternCollection);
+        $unusedPatterns = $this->unusedDefinitionsAnalyzer->analyse($contextFiles, $featureFiles, $patternCollection);
 
-        $this->assertCount(1, $unusedMasks);
-        $this->assertContainsOnlyInstancesOf(AbstractPattern::class, $unusedMasks);
+        $this->assertCount(1, $unusedPatterns);
+        $this->assertContainsOnlyInstancesOf(AbstractPattern::class, $unusedPatterns);
 
-        /** @var AbstractPattern $unusedMask */
-        $unusedMask = $unusedMasks[0];
-        $this->assertSame(__DIR__ . '/Fixture/UnusedPattern/BehatContext.php', $unusedMask->filePath);
-        $this->assertSame('never used', $unusedMask->pattern);
+        /** @var AbstractPattern $unusedPattern */
+        $unusedPattern = $unusedPatterns[0];
+        $this->assertSame(__DIR__ . '/Fixture/UnusedPattern/BehatContext.php', $unusedPattern->filePath);
+        $this->assertSame('never used', $unusedPattern->pattern);
     }
 }
diff --git a/tests/DefinitionPatternExtractor/DefinitionPatternExtractorTest.php b/tests/DefinitionPatternExtractor/DefinitionPatternExtractorTest.php
index 9329192b0..8c33b8172 100644
--- a/tests/DefinitionPatternExtractor/DefinitionPatternExtractorTest.php
+++ b/tests/DefinitionPatternExtractor/DefinitionPatternExtractorTest.php
@@ -31,18 +31,18 @@ public function test(): void
 
         $this->assertCount(3, $patternCollection->all());
 
-        $exactMasks = $patternCollection->byType(ExactPattern::class);
-        $this->assertCount(3, $exactMasks);
-        $this->assertContainsOnlyInstancesOf(ExactPattern::class, $exactMasks);
+        $exactPatterns = $patternCollection->byType(ExactPattern::class);
+        $this->assertCount(3, $exactPatterns);
+        $this->assertContainsOnlyInstancesOf(ExactPattern::class, $exactPatterns);
 
-        $firstExactMask = $exactMasks[0];
+        $firstExactPattern = $exactPatterns[0];
 
-        $this->assertSame('I click homepage', $firstExactMask->pattern);
-        $this->assertSame(AnotherBehatContext::class, $firstExactMask->className);
-        $this->assertSame(__DIR__ . '/Fixture/AnotherBehatContext.php', $firstExactMask->filePath);
+        $this->assertSame('I click homepage', $firstExactPattern->pattern);
+        $this->assertSame(AnotherBehatContext::class, $firstExactPattern->className);
+        $this->assertSame(__DIR__ . '/Fixture/AnotherBehatContext.php', $firstExactPattern->filePath);
 
-        $slashMask = $exactMasks[2];
+        $slashPattern = $exactPatterns[2];
 
-        $this->assertSame('Do this and / that', $slashMask->pattern);
+        $this->assertSame('Do this and / that', $slashPattern->pattern);
     }
 }