唱

to sing / to call loudly / to chant

mouth / classifier for things with mouths (people, domestic animals, cannons, wells etc) / classifier for bites or mouthfuls

prosperous / flourishing

chorus / to chorus

duet

vocal accompaniment / to accompany a singer / to support of sb / to echo sb / to chime in with sb

to pass on a song

to echo one another (idiom)

to sing the original version of a song (as opposed to a cover version) / singer who performs the original version of a song

see 一倡三歎|一倡三叹[yi1 chang4 san1 tan4]

to lip-sync (singing)

fiction comes true / play-acting that turns into reality

lit. whatever mountain one is on, one should sing its songs (idiom) / fig. when in Rome, do as the Romans do