copper
gb/kˈɑpɚ/ us/kˈɑpɚ/
A2
Anh
~ 4700
Các nghĩa
0 nghĩa
Danh từ
A2
entity
1
A reddish-brown metal element
A reddish-brown metal used to make wires, pipes, and coins.
Mẫu sử dụng:
[something] made of copper
Lỗi thường gặp:
Learners sometimes confuse 'copper' with 'bronze', but bronze is an alloy containing copper and other metals.
Từ đồng nghĩa
bronze (An alloy mainly of copper and tin, not pure copper.)
|
metal (A general term; less specific than copper.)
Từ trái nghĩa
plastic (A non-metal material often used instead of copper in some applications.)
Cụm từ đi kèm
copper wire
|copper pipe
|pure copper
|copper mine
|copper alloy
Chủ đề
science
|materials
|technology
|core_vocabulary
Ví dụ
- The electrician replaced the old cables with copper wire.
- Copper conducts electricity better than most metals.
- They mined copper from the hills for centuries.
- The statue was made entirely of copper.
- Copper prices have risen on the global market.
Ví dụ cho người học
- The pot is made of copper.
- Copper is used in wires.
- This pipe is copper.
- They found copper in the ground.
- Copper is a kind of metal.
Danh từ
informal
B1
entity
2
Informal term for a police officer
An informal word for a police officer.
Mẫu sử dụng:
[someone] is a copper
Lỗi thường gặp:
Learners may think 'copper' always means the metal; in slang it can mean 'police officer'.
Từ đồng nghĩa
cop (Very common informal term, especially in American English.)
Từ trái nghĩa
criminal (Opposite role to a police officer.)
Cụm từ đi kèm
local copper
|undercover copper
|old copper
Chủ đề
law
|informal
|core_vocabulary
Ví dụ
- The copper caught the thief red-handed.
- He used to be a copper before becoming a detective.
- A couple of coppers were standing on the corner.
- That copper knows everyone in the neighborhood.
Ví dụ cho người học
- The copper stopped the car.
- A copper is talking to the man.
- The copper is wearing a uniform.
- I saw a copper in the street.
Danh từ
technical
B2
entity
3
Low-value coin made from copper
A small coin made from copper or a similar metal.
Lỗi thường gặp:
Learners may confuse this with the metal itself; here it means coins made from it.
Từ đồng nghĩa
penny (In UK and US currency, a small denomination coin, sometimes made of copper.)
Cụm từ đi kèm
old copper
|small copper
|Victorian copper
Chủ đề
money
|history
|finance
|core_vocabulary
Ví dụ
- He paid the boy a few coppers for his help.
- The street musician collected coppers in his hat.
- In those days, a loaf of bread cost only a copper.
Ví dụ cho người học
- He gave me a copper.
- The man has many coppers.
- She put some coppers on the table.
Ngữ pháp
Dạng từ điển
copper
IPA
GB/kˈɑpɚ/
US/kˈɑpɚ/
Âm tiết và trọng âm
cop - per (2 âm tiết)
Stress on 1st syllable (cop)
Các dạng từ
Noun
- Base: copper
- Plural: copper, coppers
Họ từ
Forms
coppers
noun
Related words
coppery
adjective
Cách diễn đạt
copper-bottomed guarantee
1/kˈɑpɚ bˈɑtəmd ɡˌɛɹəntˈi/
fixed phrase
A completely reliable guarantee
A promise or agreement that is certain and cannot fail.
Ví dụ
- The contract came with a copper-bottomed guarantee of delivery within 30 days.
- Investors are looking for a copper-bottomed guarantee before committing their money.
copper-bottomed plan
1/kˈɑpɚ bˈɑtəmd plˈæn/
fixed phrase
A completely reliable plan
A plan that is sure to work and has no risk of failure.
Ví dụ
- We need a copper-bottomed plan if we want to impress the investors.
- Her proposal was a copper-bottomed plan for success.