fast/slow

Từ điển Oxford Learners Wordfinder Dictionary

1 speed
2 doing sth quickly or slowly
3 moving fast or slowly
4 changing to a faster or slower speed
controlling the speed of a car, etc DRIVE
see also MOVE

1 speed
- a person or thing that can move or act at great speed is fast (adjective, adverb)
a fast car ◎ She's a fast worker. ◎ She works fast.
- done or happening at speed or in a short time: quick (adverb quickly), rapid (adverb rapidly); nouns (U): speed, (formal) rapidity
a quick meal ◎ quick reactions ◎ quick thinking ◎ The crash happened so rapidly I can hardly remember it. ◎ speed of movement
- done or happening quickly, or when you do not expect it: sudden (adverb suddenly)
a sudden movement
- suddenly, unexpectedly: all of a sudden
All of a sudden there was a loud explosion.
- moving, doing sth or happening without much speed: slow (adverbs: slow, slowly); noun (U): slowness
Haven't you finished yet? You're being terribly slow! ◎ a slow train ◎ 'How's your son?' 'Getting better slowly.' ◎ Could you walk a bit slower, please? ◎ slow-moving traffic
- how fast or slowly sth moves or happens: speed (noun C/U), pace (noun singular)
to travel at a higher/lower speed ◎ the speed of light/sound ◎ the increasing pace of industrialization in developing countries

2 doing sth quickly or slowly
- to move or act very quickly: rush
Don't rush - take your time.
- to do sth quickly, without enough thought: rush (into sth/doing sth); to make sb do sth in a hurry: rush sb (into sth/doing sth)
Do you think she's rushing into this marriage? ◎ Don't rush them - let them take their time to decide.
- if you do sth too quickly or without enough thought, you or your actions are hasty (adverb hastily); noun (U): haste
Don't be too hasty. This is an important decision. ◎ In her haste to leave, she forgot her handbag.
- if you do sth quickly in order to finish it soon, you do it in a hurry, in a rush
I can't stop now; I'm in a terrific hurry. ◎ I'm afraid it was written in rather a rush and it's not very good.
- to move or do sth quickly: hurry
We hurried over to help.
- to move or do sth more quickly: (informal) hurry up, get* a move on
Hurry up or you'll be late for work. ◎ Get a move on. Our guests will be here soon.
- very soon or very quickly: in a minute/moment, right away, in no time (at all)
I'll have your car running again in no time at all.
- happening at once, without delay: immediate (adverb immediately), (formal) instantaneous (adverb instantaneously)
an immediate reply ◎ an instantaneous decision
※ more on sth happening soon SOON
- to do sth without hurrying: take* your time (over sth)
Take your time over your dinner and enjoy it.
- something you do without hurrying is leisurely
a leisurely walk
- to make sb/sth slow or late: delay sb/sth, hold* sb/sth up
Sorry I'm late. I was delayed by the fog.
- a situation where you have to wait for sth: delay, hold-up
Delays are likely on the roads because of the heavy traffic.
- to do sth slowly or waste time: dawdle
Don't dawdle or you'll be late for school.
- something which happens slowly or over a long period of time happens gradually, little by little, bit by bit; adjective: gradual
Pedro's English gradually improved during the term. ◎ Little by little the shop became successful. ◎ a gradual improvement

3 moving fast or slowly
- as fast as possible: at full speed, at top speed, flat out
They drove flat out to get to the station in time.
- going or sent quickly: express (adverb express)
an express letter ◎ to send a letter express
- to go or move very quickly: speed*, fly*, race
The Orient Express sped through the night. ◎ The cyclists raced by.
- to run very quickly or suddenly: dash; a sudden run: dash
He dashed to the window. ◎ When it started to rain, we made a dash for the bus shelter.
- to take sb to a place very quickly: rush sb somewhere
They rushed her to hospital.
- to move forward slowly or change very slowly: creep*
Our profits are creeping up each month.
- very slowly: at a snail's pace
The traffic in town was moving at a snail's pace.
※ driving fast or slow DRIVE
- walking slowly WALK

4 changing to a faster or slower speed
- to go faster or do sth faster: accelerate, quicken, speed up; to make sth go faster: accelerate sth, quicken sth, speed sth up; noun (U): acceleration
I accelerated into the fast lane. ◎ If you don't speed up, you'll never finish. ◎ He quickened his pace.
- to cause sb/sth to do sth more quickly: hurry sb/sth
The teacher hurried her students for an answer.
- a sudden increase in speed or effort: spurt
He put on a spurt towards the end of the race.
- to move or happen more slowly: slow (down/up)
Can't you slow down a bit? ◎ The rate of change has slowed down recently.
- to make sth move or happen more slowly: slow sth (down/up)
a campaign to slow down the traffic in the town centre
- to make a car, etc move more slowly: reduce speed