"

also "

" U+0022, " QUOTATION MARK ← ! [U+0021] Basic Latin # → [U+0023]

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

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.

"

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)
4. Used after a letter as a nonstandard representation of an umlaut, diaeresis or hungarumlaut, when technical limitations prevent the use of one.

   Zo"e sits on the chair.

• (diacritical mark): ', :

"

2. 〃 (ditto mark) Used in lists or tables to indicate a repetition of appropriate content above
3. (time, angles) An ASCII substitute for the symbol representing the second, placed after the value of the seconds in a term to indicate seconds count

• (time): '
• (angles): ', °
• (ditto mark): see 〃

• Ditto mark on Wikipedia.Wikipedia

Punctuation