English Reference

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.

Antonyms

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.”

Antonyms

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.”

Collocations

Common phrases and expressions where native English speakers use the word “buy” in context.

01. buy product

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

buy(A1)

Related words

Idioms

Domain

Business

This entry

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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English Reference