When you sing , you make musical sounds with your voice , usually producing words that fit a tune .

to sing better or louder than

sung throughout, with no spoken dialogue

1912–94, North Korean statesman and marshal ; prime minister (1948–72) and president (1972–94) of North Korea

If someone sings out something, they say it in a loud, cheerful voice.

If you sing along with a piece of music, you sing it while you are listening to someone else perform it.