Alpha

'Alpha'

[alpha.n.01] as in: the 1st letter of the Greek alphabet

'Alpha'

[alpha.n.02] as in: the beginning of a series or sequence; --Revelations

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Examples:
the Alpha and Omega, the first and the last, the beginning and the end

'Alpha'

[alpha.s.01] as in: first in order of importance

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Examples:
the alpha male in the group of chimpanzees
the alpha star in a constellation is the brightest or main star

'Alpha'

[alpha.s.02] as in: early testing stage of a software or hardware product

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Examples:
alpha version