1 to sing

2 to call loudly

3 to chant

1 to sing a song

1 to lip-sync (singing)

1 chorus

2 to chorus

1 chorus

2 choir

1 to echo one another (idiom)

1 lit. to have three heads and six arms (idiom)

2 fig. to possess remarkable abilities

3 a being of formidable powers

1 to lend a helping hand (idiom)

1 to put on a rival show (idiom); to set oneself up against sb

2 to get into confrontation

1 to play the role of the villain (idiom)