Question 1

What does "sing up" mean?

Accepted Answer

To sing more loudly or with greater confidence, especially when encouraged to do so.

Question 2

How do you use "sing up" in a sentence?

Accepted Answer

Come on, everyone — sing up! I can barely hear you at the back.

Question 3

Is "sing up" formal or informal?

Accepted Answer

"sing up" is register-neutral — appropriate in both casual and formal contexts. Chiefly British English. Often used as a command or encouragement, particularly in school or choral settings. Less common than 'sing out'. Sometimes used simply to encourage someone to start singing.

sing up

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