noun
The name of the first letter of the Greek alphabet (Α, α), followed by beta. In the Latin alphabet it is the predecessor to A.
Latin alpha: the Latin letter Ɑ (minuscule: ɑ).
(sciences) The name of the symbols Α and α used in science and mathematics, often interchangeable with the symbols when used as a prefix.
(finance) The return of a given asset or portfolio adjusted for systematic risk.
A person, especially a male, who is dominant, successful and attractive; (see alpha male).
(informal) Clipping of alphabet.
(software engineering) The first versions of a program, usually only available to the developer, and only tested by the developer.
(aviation) An angle of attack.
(computer graphics) The level of translucency of a color, as determined by the alpha channel.
(computer graphics) Ellipsis of alpha layer.
(statistics) The significance level of a statistical test; the alpha level.
(fandom slang) In omegaverse fiction, a person of a dominant secondary sex driven by biology, magic, or other means to bond with an omega, with males of this type often having canine-like genitalia.
Alternative letter-case form of Alpha (“member of Generation Alpha”).
adjective
Designates the first in an order of precedence.
(of person, object or action) Exhibiting characteristics of the alpha male/female archetype.
(astronomy) Designates some bright star, usually the brightest star, of a constellation.
Clipping of alphabetical.