(music) High pitch, of a voice or instrument; especially, the octave above the top line of the treble stave. / (now archaic) A state of excitement, a heightened emotional condition.

Abbreviation of alternate. / Abbreviation of alternative, especially as a cultural phenomenon seen as being outside the mainstream of its genre.

Abbreviation of altitude. / (Internet, gaming) An alternate or secondary character. / (Internet) An alternate account. / (finance) An alternative investment or alternative fund.

Synonym of altbier

(computing) A modifier key used to change (alternate) the function of other pressed keys.

(US, finance) Alternative-A — Describing mortgages loans that do not conform to the traditional standards of Fannie Mae, but are presented as having an "A" credit rating, based on the borrower's FICO credit score.

alternative

(law) Abbreviation of alternative.

Abbreviation of alternative.

(biochemistry) Initialism of alanine transaminase.