Alpha
/ˈælfə/
Last Updated: January 2, 2026 at 12:30 PM
Scrabble:10 ptsWWF:11 pts5 letters
Definition of Alpha
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 name of the symbols Α and α used in science and mathematics, often interchangeable with the symbols when used as a prefix.
"I will attempt to make an alpha particle ("α-particle") with the Large Hadron Collider."
- 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).
adjective
- Designates the first in an order of precedence.
"I am the alpha male."
- (of person, object or action) exhibiting characteristics of the alpha male/female archetype.
- Designates some bright star, usually the brightest star, of a constellation.
"When space travel becomes feasible, I plan to visit Alpha Centauri."