PUNC. MARK is a five-letter term which can be solved by the crossword solution PAREN. PUNC. MARK is an abbreviation for punctuation mark, which is a symbol used in writing to separate sentences and clauses, indicate pauses, and clarify meaning. Punctuation marks are also used to make writing easier to read and understand. Examples of punctuation marks include the period, comma, exclamation point, question mark, and parentheses.