noun

• (music) A syllable used in solfège to represent the fourth diatonic (or sixth chromatic) note of a major scale.
  "And now Mrs. Waters (for we muſt confeſs ſhe was in the ſame Bed) being, I ſuppoſe, awakened from her Sleep, and ſeeing two Men fighting in her Bed-chamber, began to ſcream in the moſt violent Manner, crying out Murder! Robbery! and more frequently Rape! which laſt, ſome, perhaps, may wonder ſhe ſhould mention, who do not conſider that theſe Words of Exclamation are uſed by Ladies in a Fright, as Fa, la, la, ra, da, &c. are in Muſic, only as the Vehicles of Sound, and without any fixed Ideas."

prep

• (informal) Alternative spelling of for.
  "Do ya wanna be a dope fiend fa krist’s sake?"

name

• (soccer) Initialism of Football Association, especially the English Football Association. See also Scottish FA and Welsh FA.
  "While there is no evidence to suggest that heading the ball is to blame, the new guidelines will be introduced to mitigate against any potential risks, according to a statement from the English Football Association (FA), in conjunction with the Scottish and Northern Irish FAs. “This updated heading guidance is an evolution of our current guidelines and will help coaches and teachers to reduce and remove repetitive and unnecessary heading from youth football,” said Mark Bullingham, CEO of the English FA."
• (furry fandom) Initialism of Fur Affinity.

pron

• (vulgar) Initialism of fuck all.
• (euphemistic) Initialism of Fanny Adams.