Word
buy
US/ˈbaɪ/
UK/bˈaɪ/
Irregular verb
Forms
Infinitive
buy
Past
bought
Past participle
bought
Definitions
01to purchase
A1 · Beginner
v. to get something by giving money for it.
v. to acquire possession of something by paying a price in money or its equivalent.
“I need to buy some milk and bread on my way home.”
“The company plans to buy several smaller competitors this year to expand its market share in the region.”
Usage
Often used ditransitively: you can buy someone something or buy something for someone.
Pitfall
I bought it to the shop.
I bought it at the shop.
Use 'at' or 'from' for the location of a purchase. 'To' suggests movement toward a place.
02to believe
B2 · Upper Intermediate Informal
v. to believe that an idea or an excuse is true.
v. to accept the truth or validity of a statement, excuse, or theory.
“He said he was late because of a dragon, but I didn't buy it.”
“The jury didn't buy the defendant's explanation for his presence at the scene, especially given the forensic evidence presented by the prosecution.”
03to bribe
C1 · Advanced Formal
v. to give someone money so they will do something dishonest for you.
v. to influence a person's actions or decisions by means of a bribe.
“The criminal tried to buy the witness's silence with a large bag of cash.”
“The investigation revealed that the corporation had attempted to buy the votes of several local officials to secure the building permit.”
04a purchase
B1 · Intermediate Countable noun
n. something that you have bought, especially if it was a good price.
n. an instance of buying or the item that has been purchased; often used to describe the value of the transaction.
“That new laptop was a great buy because it was fifty percent off.”
“The analyst described the stock as a strong buy, citing the company's robust quarterly earnings and innovative product pipeline.”
Synonyms
Collocations
Common phrases and expressions where native English speakers use the word “buy” in context.
Etymology
From Middle English byen, from Old English bycġan (“to buy, pay for, acquire, redeem, ransom, procure, get done, sell”), from Proto-West Germanic buggjan, from Proto-Germanic bugjaną (“to buy”), of uncertain origin. Perhaps from Proto-Indo-European bʰūgʰ- (“to bend”), or from Proto-Indo-European bʰewgʰ- (“to take away, deliver”). Cognate with Scots buy (“to buy, purchase”), obsolete Dutch beugen (“to buy”), Old Saxon buggian, buggean (“to buy”), Old Norse byggja (“to build, settle”), Gothic 𐌱𐌿𐌲𐌾𐌰𐌽 (bugjan, “to buy”). The spelling with “u” is from the Southwest, while the pronunciation with /aɪ/ is from the East Midlands.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Word family
VERB
NOUN
Related words
Idioms
01. been there, done that, bought the T-shirt
02. buy a dog and bark oneself
03. buy a ticket to
04. buy and hold
05. buy into
06. buy it
07. buy out
09. buy the farm
10. buy the rumor
Domain
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.A1 MoversIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.2.0–3.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 1.0–1.50–23TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.120–224
- Frequency
- Very common
- Level
- A1 · BeginnerOxford
- Updated
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