What is the meaning of Unison?

Identical pitch between two notes or sounds; the simultaneous playing of notes of identical pitch (or separated by one or more octaves).

A sound or note having the same pitch as another, especially when used as the base note for an interval; a unison string.

The state of being in harmony or agreement; harmonious agreement or togetherness, synchronisation.

Two or more voices speaking or singing the same words together.

unison

unison

in unison (of song)

Source: wiktionary.org