fast
3fast
verbDefinition of FAST
intransitive verb
1
: to abstain from food
2
: to eat sparingly or abstain from some foods
See Examples of FAST
- She always fasts on Yom Kippur.
- Patients must fast for six hours before having the procedure.
Origin of FAST
Middle English, from Old English fæstan
First Known Use: before 12th century
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