Alpha

Strong’s Dictionary of Greek Words:

Greek:
Α
Phonic:
al’-fah
Meaning:
of Hebrew origin; the first letter of the alphabet; figuratively, only (from its use as a numeral) the first: --Alpha. Often used (usually ἄν, before a vowel) also in composition (as a contraction from 427) in the sense of privation; so, in many words, beginning with this letter; occasionally in the sense of union (as a contraction of 260).

Jackson’s Dictionary of Scripture Proper Names:

first letter of the Greek alphabet: beginning