fast
//fæst//
Adjective
fastCanonical form
fasterComparative
fastestSuperlative
1
Moving or able to move at high speed; quick in motion.
He is a fast runner.
2
Firmly fixed or attached; not easily moved.
Make sure the rope is fast to the post.
3
(of a clock or watch) Showing a time ahead of the correct time.
My watch is five minutes fast.
Adverb
fastCanonical form
fasterComparative
fastestSuperlative
1
At high speed; quickly.
She runs fast.
2
Firmly or securely; tightly.
Hold fast to the rope so you don't fall.
Verb
fastedPast tense
fastedPast participle
fastingPresent participle
fastsThird-person singular
1
To abstain from all or some kinds of food or drink, especially as a religious observance.
Muslims fast during Ramadan.
Noun
1
A period of time during which one abstains from food or drink.
She broke her fast with a simple meal.