single quote

n. single quotation mark

Quotation marks or inverted commas (also informally quotes, and occasionally speech marks) are punctuation marks used in pairs to set off speech, a quotation, a phrase or a word. The pair consists of an opening quotation mark and a closing quotation mark, which may or may not be the same character.They have a variety of forms in different languages and in different media:For languages other than English see Quotation mark, non-English usageFor the various glyphs used in computer languages to define quotation marks see Quotation mark glyphsFor those fragments of a human expression placed inside quotation marks see Quotation.
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Noun
1. a single quotation mark
(hypernym) quotation mark, quote, inverted comma

<character> "'" ASCII character 39.
Common names include single quote; quote; ITU-T: apostrophe. Rare: prime; glitch; tick; irk; pop; INTERCAL: spark; ITU-T: closing single quotation mark; ITU-T: acute accent.
Single quote is used in C and derived languages to introduce a single character literal value which is represented internally by its ASCII code. In the Unix shells and Perl single quote is used to delimit strings in which variable substitution is not performed (in contrast to double-quote-delimited strings).
Single quote is often used in text for both open and close single quotation mark and apostrophe. Typesetters use two different symbols - open has a tail going up, close and apostrophe have tails hanging down (like a raised comma). Some people use back quote (`) for open single quotation mark.
(1998-04-04)