fast

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1 fast /ˈfæst/ Brit /ˈfɑːst/ adjective
faster; fastest
1 fast
/ˈfæst/ Brit /ˈfɑːst/
adjective
faster; fastest
Learner's definition of FAST
[more fast; most fast]
: moving or able to move quickly
: happening quickly : taking a short amount of time
: doing something or able to do something quickly
: allowing movement at a great speed see also fast lane, fast track
of a clock or watch : showing a time that is later than the correct time
photography : allowing photographs to be taken very quickly or when there is very little light
informal
: tricky and unfair
: earned or gotten quickly and often in a dishonest way
: quick and not safe to trust
see also fast-talk
old-fashioned + humorous
: actively seeking excitement or pleasure : wild
of women : very willing to have sex
: placed, tied, or attached in a way that is not easily moved
: closed tightly
: impossible to change used in the phrase hard and fast

fast and furious

: in a very fast and forceful way : with one thing following another very quickly
◊ The phrase fast and furious is used both as an adjective and as an adverb.

play fast and loose

see 1play
2 fast /ˈfæst/ Brit /ˈfɑːst/ adverb
faster; fastest
2 fast
/ˈfæst/ Brit /ˈfɑːst/
adverb
faster; fastest
Learner's definition of FAST
: with great speed
: in a very short time : very quickly
opposite slow, slowly
: in a quick and intelligent way
: quickly and in a way that is meant to deceive or persuade someone
see also fast-talk
: in a way that is not easily moved or changed

fast and furious

see 1fast

fast asleep

see asleep

going/getting nowhere fast

informal
◊ To be going/getting nowhere fast is to be failing to make progress or to produce a desired result.

not so fast

informal
used in speech to say that you disagree with what someone has said or to tell someone to stop or slow down
3 fast /ˈfæst/ Brit /ˈfɑːst/ verb
fasts; fasted; fasting
3 fast
/ˈfæst/ Brit /ˈfɑːst/
verb
fasts; fasted; fasting
Learner's definition of FAST
[no object]
: to eat no food for a period of time

— fasting

noun [noncount]
4 fast /ˈfæst/ Brit /ˈfɑːst/ noun
plural fasts
4 fast
/ˈfæst/ Brit /ˈfɑːst/
noun
plural fasts
Learner's definition of FAST
[count]
: a period of time when you do not eat any food : a time of fasting
Comments & Questions
Comments & Questions
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