omega
n. countablen. the last part of something, or the end of a series. It is also the name of the final letter in the Greek alphabet.
n. the twenty-fourth and final letter of the Greek alphabet, often representing the ultimate end or conclusion of a sequence.
The omega is the final letter of the Greek alphabet.
In many classic texts, the author uses the alpha and the omega to represent the beginning and the end.
The physicist explained that the omega symbol is used to represent the ohm, which measures electrical resistance, as well as the angular frequency of a rotating object.
From Middle English, from Ancient Greek ὦ μέγα (ô méga), meaning “great ω” (omega is a long vowel in Ancient Greek).
Often used in the idiomatic phrase 'the alpha and the omega' to signify the entirety of something.