hummer
1. [ noun ] (music,performing arts) a singer who produces a tune without opening the lips or forming words
Related terms: singer hum
2. [ noun ] Last name, frequency rank in the U.S. is 9321
3. [ noun ] (baseball) a pitch thrown with maximum velocity
Synonyms: fastball bullet smoke heater
Examples:

"he swung late on the fastball" "he showed batters nothing but smoke"

Related terms: pitch slider baseball
Similar spelling:   humor
  humour
  Hemmer
  hammer