fast
gb/fˈæst/ us/fˈæst/
A1
Anh
~ 1800
Các nghĩa
0 nghĩa
adjective
A1
property
1
Moving quickly
Moving very quickly.
Mẫu sử dụng:
[something] is fast
Lỗi thường gặp:
Learners sometimes confuse 'fast' and 'quickly'; 'fast' is often used after 'be' verbs, while 'quickly' is an adverb modifying actions.
Từ đồng nghĩa
quick (Slightly more general; can refer to actions or processes, not just movement speed.)
Từ trái nghĩa
slow (Describes low speed or lack of quickness.)
Cụm từ đi kèm
fast car
|fast train
|fast runner
|fast pace
Chủ đề
daily life
|transport
|sports
|core_vocabulary
|travel
|transportation
Ví dụ
- The cheetah is the fastest land animal.
- She drives a very fast car.
- This computer is fast compared to my old one.
Ví dụ cho người học
- The bus is fast.
- He runs fast.
- This phone is fast.
adverb
A1
property
2
At a high speed
Quickly or with high speed.
Mẫu sử dụng:
[someone] runs fast
Lỗi thường gặp:
Learners may incorrectly say 'fastly'; the correct form is 'fast'.
Từ đồng nghĩa
quickly (More general in use; 'fast' is less formal and often used in speech.)
Từ trái nghĩa
slowly (Describes doing something at a low speed.)
Cụm từ đi kèm
run fast
|drive fast
|move fast
Chủ đề
daily life
|sports
|core_vocabulary
Ví dụ
- He runs surprisingly fast for his age.
- The train was moving too fast to stop in time.
- She talks fast when she’s nervous.
Ví dụ cho người học
- He runs fast.
- The car moves fast.
- She speaks fast.
adjective
B1
property
3
Firmly fixed, secure
Held tightly and not able to move.
Mẫu sử dụng:
[something] is fast [somewhere]
Từ đồng nghĩa
secure (Emphasizes safety or protection rather than immovability.)
Từ trái nghĩa
loose (Not firmly fixed or attached.)
Cụm từ đi kèm
hold fast
|stuck fast
|fast asleep
Chủ đề
construction
|daily life
|core_vocabulary
Ví dụ
- The boat was held fast by the rope.
- The lid was stuck fast and wouldn’t open.
- He held her arm fast.
Ví dụ cho người học
- The rope holds the boat fast.
- The lid is stuck fast.
- He holds my hand fast.
Động từ
B1
action
4
Go without food for a time
To not eat for some time, often for religion or health.
Mẫu sử dụng:
to fast for [time period]
Từ đồng nghĩa
abstain from eating (More formal and explicit description of the action.)
Từ trái nghĩa
feast (To eat a lot, often in celebration.)
Cụm từ đi kèm
fast during Ramadan
|fast for 24 hours
Chủ đề
religion
|health
|food_drink
Ví dụ
- Muslims fast from dawn to sunset during Ramadan.
- Some people fast once a week for health benefits.
- He decided to fast for two days before the operation.
Ví dụ cho người học
- I fast during Ramadan.
- She will fast for one day.
- They fast for health.
Danh từ
B1
event
5
A period of not eating food
A time when you do not eat food for religion or health.
Từ đồng nghĩa
abstinence from food (Formal phrase, used in medical or religious contexts.)
Từ trái nghĩa
feast (An event with abundant eating.)
Cụm từ đi kèm
religious fast
|go on a fast
Chủ đề
religion
|health
|food_drink
Ví dụ
- They went on a three-day fast before the ceremony.
- The doctor recommended a short fast before the test.
- Breaking the fast is an important tradition.
Ví dụ cho người học
- He went on a fast.
- The fast lasts two days.
- We break the fast at night.
Ngữ pháp
Dạng từ điển
fast
IPA
GB/fˈæst/
US/fˈæst/
Âm tiết và trọng âm
fast (1 âm tiết)
Stress on 1st syllable (fast)
Các dạng từ
Adjective
- Base: fast
- Comparative: faster
- Superlative: fastest
Noun
- Base: fast
- Plural: fast, fasts
Verb
- Base: fast
- 3rd Person Singular: fasts
- Present Participle: fasting
- Past: fasted
Họ từ
Cách diễn đạt
hold fast
1/hˈoʊld fˈæst/
fixed phrase
Keep a firm grip on something
To keep holding something tightly and not let go.
Ví dụ
- Hold fast to the railing when climbing the stairs.
- He held fast to his beliefs despite criticism.
play fast and loose
1/plˈeɪ fˈæst ˈænd lˈus/
idiom
informal
Act carelessly or dishonestly
To behave without care or honesty, especially with rules or promises.
Ví dụ
- The company played fast and loose with safety regulations.
- You can't play fast and loose with people's trust.
fast asleep
1/fˈæst əslˈip/
fixed phrase
sleeping very deeply
Sleeping very deeply and peacefully.
Ví dụ
- By 10 p.m., the children were fast asleep.
- She looked so peaceful, fast asleep under the blanket.
fast asleep
2/fˈæst əslˈip/
fixed phrase
In deep sleep
Sleeping very deeply.
Ví dụ
- She was already fast asleep when I came home.
- The baby is fast asleep in his crib.