fa

noun Music.

1. the syllable used for the fourth tone of a diatonic scale.
2. (in the fixed system of solmization) the tone F.Compare sol-fa(def 1).

noun

1. the twentieth letter of the Arabic alphabet.

noun

1. music a variant spelling of fah

abbreviation for

1. military field artillery
2. (in Britain) Football AssociationSee also FA Cup

fourth note in Guidonian scale; see gamut.