adjective
She is very fast on her feet. We need a fast turn-round on this job
They led quite a fast life till their divorce
The boat was fast to the pier
The sword was fast in the stone
We maintained a fast friendship over the years
adverb
Don't talk so fast. He ran out of there very fast. I'll be back very fast
The rope held fast. He is fast asleep
Fast on the heels of the fugitive came the police
He's been living fast since inheriting that fortune
verb
Do you fast during Lent?
noun
She went on a two-week fast
US