inverted comma

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A quotation mark.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun UK A type of quotation mark, denoted by ‘ (an "open inverted comma") or ’ (a "close inverted comma"). Often used instead of "inverted commas", which also means a "double style" inverted comma, denoted by “ ("open inverted commas") or ” ("close inverted commas"), in the United Kingdom.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a punctuation mark used to attribute the enclosed text to someone else