from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Chiefly British A quotation mark.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. 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.
- n. a punctuation mark used to attribute the enclosed text to someone else
From the appearance of an apostrophe as a raised or "inverted" comma. (Wiktionary)