the.com/unison

Everyone hitting the same note, so no one finds out who can't sing.

means Speaking, singing, or acting all together at the same time, as one voice instead of many.

from From Latin unisonus, 'having one sound' — uni- (one) plus sonus (sound), the same sonus that gives us 'sonic' and 'sonnet.' It passed through French into English, keeping its original musical sense of voices or instruments sounding a single pitch together before it loosened into the broader 'all at once, in agreement' we use today.

etymology
Latin for one sound, literally
safety trick
hides weak voices inside strong ones
choir rule
easier to blend than to shine
harmony's opposite
zero distance between any two notes
the.com · every word