Meaning & use
fast
Moving or capable of moving at high speed; happening quickly.
See it in a sentence
The cheetah is the fastest land animal, capable of incredible bursts of speed.
We need a fast decision before the offer on the house expires.
A note on using this word
"Fast" is unusual because it works as both adjective and adverb with the same spelling, as in "run fast."
Words with a similar meaning
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
Another way to use it
2. verb
To abstain from eating food for a period of time, often for religious or health reasons.
Many followers fast from dawn until sunset during the holy month.
Make it your own
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