chorus

US /ˈkɔːr.əs/
UK /ˈkɔːr.əs/
"chorus" picture
1.

a part of a song that is repeated several times, usually after each verse, and that typically contains the main musical and lyrical themes

:
Everyone sang along to the catchy chorus.
The song has a powerful and memorable chorus.
2.

a large group of people who sing together

:
The church chorus performed beautifully.
She joined the school chorus to improve her singing.
1.

to say something at the same time as many other people

:
The crowd chorused their approval.
They all chorused, 'Happy Birthday!'