What does “fast” mean?
- 1
adjectivemoving or happening quickly
He’s the fastest runner on the team.
- 2
adverbquickly
Don’t drive so fast!
- 3
verbto eat no food for a period of time
Many people fast during Ramadan.
Fast at a glance
- Part of speech
- adjective, adverb & verb
- CEFR level
- A1 (beginner)
- Pronunciation
- /fæst/ · FAST
How to use “fast” correctly
The adverb is “fast”, not “fastly”. “Fast asleep” means completely asleep.
Common phrases with “fast”
- fast food
- fast asleep
- a fast learner
Synonyms, opposites and related words
Synonyms (similar meaning)
- quick
- rapid
- quickly
Antonyms (opposite meaning)
- slow
- slowly
“fast” is on these word lists
Learn these words next
- hard adjectiveA1difficult to do or understand
- begin verbA1to start doing something or to start happening
- break verbA1to make something separate into pieces or stop working
- bring verbA1to take someone or something with you to a place
- build verbA1to make a building or other structure by putting parts together
- change verbA1to become different, or make someone or something different
- check verbA1to look at something to see if it is correct, safe or as it should be
- close verbA1to shut something, or to stop being open