Tra từ buy - Từ điển Oxford Advanced Learner 8th

buy [buy buys bought buying] verb, noun BrE [baɪ] NAmE [baɪ]
verb (bought, boughtBrE [bɔːt] ; NAmE [bɔːt] )

WITH MONEY
1. transitive, intransitive to obtain sth by paying money for it
•~ (sth) Where did you buy that dress?
• If you're thinking of getting a new car, now is a good time to buy.
•~ sth from sb I bought it from a friend for £10.
•~ sb sth He bought me a new coat.
•~ sth for sb He bought a new coat for me.
•~ sth + adj. I bought my car second-hand.
Opp: ↑sell
2. transitive ~ sth (of money)to be enough to pay for sth
•He gave his children the best education that money can buy.
•Five pounds doesn't buy much nowadays.
3. transitive ~ sb to persuade sb to do sth dishonest in return for money
Syn: ↑bribe
•He can't be bought (= he's too honest to accept money in this way).

OBTAIN
4. transitive, usually passive ~ sth to obtain sth by losing sth else of great value
•Her fame was bought at the expense of her marriage.

BELIEVE
5. transitive ~ sth (informal)to believe that sth is true, especially sth that is not very likely
•You could say you were ill but I don't think they'd buy it (= accept the explanation).
more at the best that money can buy at ↑best _n., (buy) a pig in a poke at ↑pig _n., sell sb/buy a pup at ↑pup
Verb forms:

Word Origin:
Old English bycgan, of Germanic origin.

Thesaurus:
buy verb T
•I bought a new coat.
especially spoken get • |informal pick sth up • • snap sth up • |formal purchase • • acquire •
Opp: sell
buy/get/snap up/purchase/acquire (a) property/company/house
buy/get/purchase/acquire land/premises/a site/tickets
get/pick up/snap up a bargain

Example Bank:
•He bought a car for his daughter.
•I bought it for $25.
•I bought some books from a friend.
•I can't afford to buy a new car.
•It's the best that money can buy.
•Old bicycles can be bought quite cheaply.
•She makes her living buying and selling antiques.
•There are some things money can't buy.
•Was the produce imported or bought locally?
•We can afford to buy enough paint to do the whole house.
•Young people are very comfortable buying online.
•Five pounds doesn't buy much nowadays.
•I bought this from a friend for £10.
•If you're thinking of getting a new car, now is a good time to buy.
Idioms: ↑bought it ▪ ↑buy the farm ▪ ↑buy time
Derived: ↑buy into something ▪ ↑buy somebody off ▪ ↑buy somebody out ▪ ↑buy something in ▪ ↑buy something up

noun

STH BOUGHT
1. a good, better, etc. ~ a thing that is worth the money that you pay for it
•That jacket was a really good buy.
•Best buys this week are carrots and cabbages.
2. something that is bought or that is for sale; the act of buying sth
•Computer games are a popular buy this Christmas.
•The club has made some great buys this season (= it has bought good new players).

Word Origin:
Old English bycgan, of Germanic origin.