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a race
Match.
speed.
speed
races
Tempo.
"Speed" or perhaps "haste".
drive, float, speed
The word for 5 times the speed of sound is "supersonic."
Daily is a good word for a 5 letter word for everyday.
loose is a 5 letter word for not taut.
Inter is a 5-letter word for bury.
small 5 letter word