1. a person who punctuates text or writing
2. a device or tool used for punctuating

Examples

• The editor worked as a punctuator for the publishing house.
• She was known as an excellent punctuator who never missed a comma.
• The automatic punctuator helped format the document correctly.
• As a professional punctuator, he specialized in technical manuscripts.
• The new software includes a built-in punctuator feature.
• The punctuator carefully reviewed each sentence for proper marks.