close friend, bosom buddy / crony, chum

The name of the Latin-script letter Y.

(Internet slang) I, me

Wy

(chiefly women's speech) first person singular pronoun: I, me

(networking) Wi-Fi

y-axis (axis on a graph that is usually drawn from bottom to top)

(polite) first-person singular pronoun: I, me

a personal or private matter / (by extension) selfishness

(formal) first-person singular pronoun: I, me