| Hum | (baseball) a pitch thrown with maximum velocity |
|---|---|
| Hum | a singer who produces a tune without opening the lips or forming words |
| Hum | the act of singing with closed lips |
| Hum | a humming noise |
| Hum | shrublet of southwestern United States to Mexico having brilliant scarlet flowers |
| Hum | a top that makes a humming noise as it spins |
| Hum | tiny American bird having brilliant iridescent plumage and long slender bills |
| Hum | any of various moths with long narrow forewings capable of powerful flight and hovering over flowers to feed |
| Hum | a small natural hill |
| Hum | (used informally) very large |
| Hum | the trait of appreciating (and being able to express) the humorous |
| Hum | the quality of being funny |