1
fast
adjective
- moving or able to move quickly
- happening quickly : taking a short amount of time
- operating quickly
2
fast
adverb
- with great speed : in a very short time : very quickly
- in a quick and intelligent way
- quickly and in a way that is meant to deceive or persuade someone
3
fast
verb
- to eat no food for a period of time
4
fast
noun
- a period of time when you do not eat any food : a time of fasting
