UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈbaɪ/, /ˈbɔːt/US:USA pronunciation: IPA and respellingUSA pronuncation: IPA/baɪ/ ,USA pronunciation: respelling(bī)

Inflections of 'buy' (v): (⇒ conjugate)
v 3rd person singular
v pres pverb, present participle: -ing verb used descriptively or to form progressive verb--for example, "a singing bird," "It is singing."
v pastverb, past simple: Past tense--for example, "He saw the man." "She laughed."
v past pverb, past participle: Verb form used descriptively or to form verbs--for example, "the locked door," "The door has been locked."

WordReference Random House Learner's Dictionary of American English © 2020
buy /baɪ/USA pronunciation   v.,  bought/bɔt/USA pronunciation  buy•ing, n. 
  1. to get possession of (something), esp. by paying money;
    purchase: [+ object]She bought a new computer.[+ object + object]She bought him a new computer.[+ object + for + a noun showing an amount]She bought the computer for only $499.[no object]He buys at low prices.
  2. to obtain by exchange or sacrifice: [+ object]to buy favor with flattery; Victory can only be bought with bloodshed.[+ object + object]:[Buy me some happiness.]
  3. to bribe:[+ object]The senator claimed he couldn't be bought.
  4. [+ object;  not: be + ~-ing] to equal (some amount of) purchasing power : A dollar doesn't buy much these days.
  5. Informal Terms[+ object] Informal. to accept or believe: I don't buy that explanation.
  6. Business buy into, [+ into + object] to purchase a share in:He bought into the syndicate deal for the construction of new downtown housing.
  7. buy off, to get rid of (a claim, etc.) by payment;
    to bribe: [+ object + off]See if you can buy him off.[+ off + object]Buy off as many politicians as you can.
  8. Business buy out,
    • [+ out + object] to purchase (shares in a company) so as to gain control of:He bought out the company and tried to resell it.
    • to purchase all the business shares belonging to (another): [+ object + out]When the businessman retired, his partner bought him out.[+ out + object]They bought out all the other partners.
  9. buy up, to buy as much of (something) as is available: [+ up + object]bought up all the oil on the market.[+ object + up]They tried to buy it all up.

n. [countable]
  1. a bargain:The couch and the stereo are good buys.
  1. Idioms, Slang Termsbuy time, [Informal.]to put off some action or decision: [no object]:[tried to buy time by making conversation while he tried to remember her name.][buy + object + time]:[Buy me some time while I figure out what to say.]

WordReference Random House Unabridged Dictionary of American English © 2020
buy  (bī),USA pronunciation v.,  bought, buy•ing, n. 
  1. to acquire the possession of, or the right to, by paying or promising to pay an equivalent, esp. in money;
  2. to acquire by exchange or concession:to buy favor with flattery.
  3. to hire or obtain the services of:The Yankees bought a new center fielder.
  4. to bribe:Most public officials cannot be bought.
  5. to be the monetary or purchasing equivalent of:Ten dollars buys less than it used to.
  6. [Chiefly Theol.]to redeem;
  7. Games[Cards.]to draw or be dealt (a card):He bought an ace.
  8. Informal Terms
    • to accept or believe:I don't buy that explanation.
    • to be deceived by:He bought the whole story.

  1. to be or become a purchaser.
  2. Banking, Businessbuy down, to lower or reduce (the mortgage interest rate) by means of a buy-down.
  3. Businessbuy in: 
    • to buy a supply of;
      accumulate a stock of.
    • to buy back one's own possession at an auction.
    • to undertake a buy-in. Also,  buy into. 
  4. Businessbuy into, to purchase a share, interest, or membership in:They tried to buy into the club but were not accepted.
  5. buy it, [Slang.]to get killed:He bought it at Dunkirk.
  6. buy off, to get rid of (a claim, opposition, etc.) by payment;
    purchase the noninterference of;
    bribe:The corrupt official bought off those who might expose him.
  7. Businessbuy out, to secure all of (an owner or partner's) share or interest in an enterprise:She bought out an established pharmacist and is doing very well.
  8. buy up, to buy as much as one can of something or as much as is offered for sale:He bought up the last of the strawberries at the fruit market.

  1. an act or instance of buying.
  2. something bought or to be bought;
    purchase:That coat was a sensible buy.
  3. a bargain:The couch was a real buy.
buya•ble, adj. 
  • bef. 1000; Middle English byen, variant of byggen, buggen, Old English bycgan; cognate with Old Saxon buggjan, Gothic bugjan to buy, Old Norse byggja to lend, rent
    • 1.See corresponding entry in Unabridged Buy, purchase imply obtaining or acquiring property or goods for a price.
      Buy is the common and informal word, applying to any such transaction:to buy a house, vegetables at the market.Purchase is more formal and may connote buying on a larger scale, in a finer store, and the like:to purchase a year's supplies.
    • 1.See corresponding entry in Unabridged sell.

Collins Concise English Dictionary © HarperCollins Publishers::
buy /baɪ/ vb (buys, buying, bought)(mainly tr)
  1. to acquire by paying or promising to pay a sum of money or the equivalent; purchase
  2. to be capable of purchasing: money can't buy love
  3. to acquire by any exchange or sacrifice: to buy time by equivocation
  4. (intransitive) to act as a buyer
  5. to bribe or corrupt; hire by or as by bribery
  6. slang to accept as true, practical, etc
  7. (intransitive) followed by into: to purchase shares of (a company): we bought into General Motors
  8. (transitive) (esp of Christ) to ransom or redeem (a Christian or the soul of a Christian)
  9. have bought itslang to be killed
  1. a purchase (often in the phrases good or bad buy)

See also buy in, buy into, buy off, buy out, buy upEtymology: Old English bycgan; related to Old Norse byggja to let out, lend, Gothic bugjan to buy
The use of off after buy as in I bought this off my neighbour was formerly considered incorrect, but is now acceptable in informal contexts

'buy' also found in these entries:
Collocations: buy [clothes, food, a new TV], was a [great, fantastic, good] buy, (can) buy it at the [store, market], more...

Forum discussions with the word(s) "buy" in the title:

Look up "buy" at Merriam-Webster
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