"racing" in the noun sense

1. racing

the sport of engaging in contests of speed

"racing" in the verb sense

1. rush, hotfoot, hasten, hie, speed, race, pelt along, rush along, cannonball along, bucket along, belt along, step on it

move hurridly

"He rushed down the hall to receive his guests"

"The cars raced down the street"

2. race, run

compete in a race

"he is running the Marathon this year"

"let's race and see who gets there first"

3. race

to work as fast as possible towards a goal, sometimes in competition with others

"We are racing to find a cure for AIDS"

4. race, rush

cause to move fast or to rush or race

"The psychologist raced the rats through a long maze"

Source: WordNet® (An amazing lexical database of English)

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