See also: Fs, FS, fS, f's, F's, and

Translingual edit

Symbol edit

fs

  1. (metrology) Symbol for femtosecond, an SI unit of time equal to 10−15 seconds.

English edit

Etymology 1 edit

Noun edit

fs

  1. plural of f
Usage notes edit
  • Opinions vary regarding the use of apostrophes when forming the plurals of letters of the alphabet. New Fowler's Modern English Usage, after noting that the usage has changed, states on page 602 that "after letters an apostrophe is obligatory." The 15th edition of The Chicago Manual of Style states in paragraph 7.16, "To avoid confusion, lowercase letters ... form the plural with an apostrophe and an s". The Oxford Style Manual on page 116 advocates the use of common sense.

Etymology 2 edit

Prepositional phrase edit

fs

  1. (text messaging) Abbreviation of for sure.

Anagrams edit