"

Alternative forms

 * (as opening quotation mark), ” (as closing quotation mark), ״ (as gershayim), 〃 (as ditto mark), ″ (as double prime)

Etymology
Typographical simplification, particularly due to the use of typewriters, thence followed in computers: rather than having separate opening (“) and closing (”) quotation marks (and other keys for ″ and others), a single square key was used, to reduce the number of keys.

Punctuation mark

 * 1) Used as a quotation mark in some languages. See " ".
 * 2) An ASCII substitute for ״ (gershayim)
 * 3) An ASCII substitute for ″ (double prime, as in inches)

Symbol

 * 1)  〃 (ditto mark)
 * 2)  An ASCII substitute for the symbol representing the second, placed after the value of the seconds in a term to indicate seconds count

Coordinate terms

 * , °
 * see 〃
 * see 〃