Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun hummer

2 senses of hummer

Sense 1
hummer -- (a singer who produces a tune without opening the lips or forming words)
       => singer, vocalist, vocalizer, vocaliser -- (a person who sings)

Sense 2
fastball, heater, smoke, hummer, bullet -- ((baseball) a pitch thrown with maximum velocity; "he swung late on the fastball"; "he showed batters nothing but smoke")
       => pitch, delivery -- ((baseball) the act of throwing a baseball by a pitcher to a batter)