Punctuation marks are symbols used in writing to separate and organize ideas, sentences, and clauses. The crossword solutions for the term punctuation marks include semicolons (10 letters), colons (6 letters), DOTS (4 letters), COLON (5 letters), commas (6 letters), and PERIODS (7 letters). Semicolons are used to join two independent clauses, while colons are used to introduce a list or explanation. DOTS are used to indicate an abbreviation or to indicate a pause in speech. A COLON is used to introduce a quotation or to separate two independent clauses. Commas are used to separate items in a list or to separate two independent clauses. Finally, PERIODS are used to end a sentence.