″

Symbol

 * 1) Inches
 * 2) Seconds (as a fraction of a degree of arc)
 * 3) Seconds (as a unit of time)
 * 4) second derivative
 * f″ - The double derivative of f
 * 1)  Transliteration of the hard sign (ъ) or apostrophe (’), Indicating non-palatalization of the preceding consonant before a soft vowel.
 * 2)  used to distinguish two or more points, lines, etc. with the same name
 * t, t′, t″, t‴, t⁗, …
 * A, A′, A″, A‴, A⁗, …
 * A, A′, A″, A‴, A⁗, …