Quotation Mark Definition

Either of a pair of punctuation marks (“ … ”) used to enclose a direct quotation, a word or phrase being used in a special way, or the title of a short written work, as a story, poem, or song.

Either of a pair of single marks (‘ … ’) for enclosing a quotation within a quotation (Ex.: She said, “Remember this, ‘Always think before you speak.'”)

Attributive form of quotation mark, noun.