hummer has definitions from the fields of baseball,music,performing arts
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

Examples

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

Related terms

pitch slider baseball

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