Meaning & Definition of Alpha in English

1. The 1st letter of the greek alphabet

2. The beginning of a series or sequence

• "The alpha and omega, the first and the last, the beginning and the end"--revelations

1. First in order of importance

• "The alpha male in the group of chimpanzees"

• "The alpha star in a constellation is the brightest or main star"

2. Early testing stage of a software or hardware product

• "Alpha version"