Hum | Mean of hum in English Dictionary

/ˈhʌm/

• Verb
• to make a low continuous sound
1. The garden was humming with bees.
2. The refrigerator hummed in the background.
• to sing the notes of a song while keeping your lips closed
1. I was humming to myself.
2. We hummed along to the music.
3. Can you hum the tune for me? = Can you hum me the tune?
4. I hummed a little song.
• to be very active or busy
1. By noon, the office was really humming.
2. The restaurant hums on weekends.