| 買う | かう | to buy; to purchase; to value (highly); to think highly of | n5 |
| 買取 | かいとり | purchase; buying; buying out; buying used articles as a company | |
| 買物 | かいもの | shopping; purchased goods | n5 |
| 買い物 | かいもの | shopping; purchased goods | n5 |
| 売買 | ばいばい | trade; buying and selling; trafficking (e.g. of humans, arms, drugs); dealing | n1 |
| 買収 | ばいしゅう | acquisition (esp. corporate); buy-out; takeover; purchase | n1 |
| 買い取る | かいとる | to buy; to purchase; to buy out | n2 |
| 買い込む | かいこむ | to buy in quantity; to buy a lot (of); to stock up (on); to lay in | |
| 買手 | かいて | buyer | n2 |
| 買い | かい | buying; shopping; buyer; purchase | n2 |
| 買い求める | かいもとめる | to buy | n2 |
| 購買 | こうばい | procurement; purchase; buying; school store | n1 |
| 買入れる | かいいれる | to purchase; to buy in | |
| 買いかぶる | かいかぶる | to overestimate (someone); to overrate; to think too highly of; to make too much of | |
| 買い手 | かいて | buyer | n2 |
| 買い入れる | かいいれる | to purchase; to buy in | |
| 買出し | かいだし | going out to shop; going shopping; buying in quantity; buying wholesale | |
| 買い出し | かいだし | going out to shop; going shopping; buying in quantity; buying wholesale | |
| 買いこむ | かいこむ | to buy in quantity; to buy a lot (of); to stock up (on); to lay in | |
| お買い得 | おかいどく | bargain; good buy; budget | |
| 買いもの | かいもの | shopping; purchased goods | n5 |
| 買い被る | かいかぶる | to overestimate (someone); to overrate; to think too highly of; to make too much of | |
| 仲買 | なかがい | brokerage; broker | |
| 仲買人 | なかがいにん | broker; jobber | |
| 買い戻す | かいもどす | to buy back; to redeem | |
| 買上げ | かいあげ | buying; purchasing; procurement | n2 |
| 買込む | かいこむ | to buy in quantity; to buy a lot (of); to stock up (on); to lay in | |
| 買い方 | かいかた | buyer; purchaser; method of buying | |
| 買い占める | かいしめる | to buy up | n1 |
| 女郎買い | じょろうかい | buying the services of a prostitute; whoring | |
| 買い上げる | かいあげる | to buy (of a government, public agency, etc. from a private citizen); to purchase; to buy up (all of something) | |
| 買いつける | かいつける | to buy a large amount (of); to purchase (in large quantities); to buy in; to lay in (stock) | |
| 売り買い | うりかい | trade; buying and selling | |
| まとめ買い | まとめがい | bulk buying; buying in quantity; stocking up (on) | |
| 買い受ける | かいうける | to purchase | |
| 買い取り | かいとり | purchase; buying; buying out; buying used articles as a company | |
| 買い占め | かいしめ | buying up of goods; cornering (market) | |
| 買切る | かいきる | to buy up; to buy everything available; to hire for exclusive use; to reserve | |
| 買い入れ | かいいれ | buying; purchasing; laying in | |
| 買い切る | かいきる | to buy up; to buy everything available; to hire for exclusive use; to reserve | |
| 買付け | かいつけ | buying (in large quantities); (wholesale) purchase; buying in; (one's) usual (store, supplier, etc.) | |
| 買占める | かいしめる | to buy up | n1 |
| 買占め | かいしめ | buying up of goods; cornering (market) | |
| お買い上げ | おかいあげ | buying; purchasing | |
| 買主 | かいぬし | buyer; purchaser | n3 |
| 買い上げ | かいあげ | buying; purchasing; procurement | n2 |
| 買戻す | かいもどす | to buy back; to redeem | |
| 買い替え | かいかえ | buying a replacement; replacement purchase | |
| 買値 | かいね | buying price; cost price; purchase price | |
| 買い付け | かいつけ | buying (in large quantities); (wholesale) purchase; buying in; (one's) usual (store, supplier, etc.) | |
| 買い漁る | かいあさる | to buy all (of something) one can get one's hands on; to buy up; to scoop up | |
| 買い言葉 | かいことば | retort (to an insult, jeer, etc.) | |
| 機嫌買い | きげんかい | fickle; capricious | |
| 買い与える | かいあたえる | to buy as a gift | n2 |
| 買い替える | かいかえる | to buy a replacement; to replace (with a new purchase) | |
| 買いだめ | かいだめ | stocking up (on); hoarding | |
| 買弁 | ばいべん | intermediary in China conducting business with foreign countries; comprador; compradore; person working for a foreign company to the detriment of their own country | |
| 買いあさる | かいあさる | to buy all (of something) one can get one's hands on; to buy up; to scoop up | |
| 不買 | ふばい | not buying | |
| 故買 | こばい | buying stolen goods; receiving | |
| 買い薬 | かいぐすり | over-the-counter drug; medication bought directly from the drugstore without a prescription | |
| 買い置き | かいおき | stock (of goods); reserve; supply | |
| 買い付ける | かいつける | to buy a large amount (of); to purchase (in large quantities); to buy in; to lay in (stock) | |
| 買春 | ばいしゅん | buying sex; hiring a prostitute | |
| 人買い | ひとかい | slave traffic; slave dealer | |
| 買い得 | かいどく | bargain; good buy | |
| 買受ける | かいうける | to purchase | |
| 買溜め | かいだめ | stocking up (on); hoarding | |
| 買言葉 | かいことば | retort (to an insult, jeer, etc.) | |
| 買い換える | かいかえる | to buy a replacement; to replace (with a new purchase) | |
| 買い主 | かいぬし | buyer; purchaser | n3 |
| 買得 | かいどく | bargain; good buy | |
| 買薬 | かいぐすり | over-the-counter drug; medication bought directly from the drugstore without a prescription | |
| ドル買い | ドルかい | dollar purchase | |
| 買いたたく | かいたたく | to beat down prices; to strike a hard bargain | |
| 買い物好き | かいものずき | shopaholic; compulsive buying; shopaholicism | |
| 買置き | かいおき | stock (of goods); reserve; supply | |
| 購買力 | こうばいりょく | buying power; purchasing power | |
| 購買者 | こうばいしゃ | buyer | |
| お買上げ | おかいあげ | buying; purchasing | |
| 買い物カゴ | かいものかご | shopping basket | |
| 女郎買 | じょろうかい | buying the services of a prostitute; whoring | |
| 非買同盟 | ひばいどうめい | boycott | |
| ジャケ買い | ジャケがい | buying a CD, book, etc. because of the cover | |
| 衝動買い | しょうどうがい | impulse buying; impulse purchase | n1 |
| 小買い | こがい | buying in small quantity | |
| 爆買い | ばくがい | binge shopping; shopping spree | |
| 買物袋 | かいものぶくろ | shopping bag | |
| 購買層 | こうばいそう | purchasers; customer base; market (for a product) | |
| 購買部 | こうばいぶ | school store; co-op; purchasing department | |
| 大人買い | おとながい | buying a large amount (esp. of collectible items aimed at children, e.g. manga) | |
| 試し買い | ためしがい | trial purchase; buying on trial | |
| 買い物袋 | かいものぶくろ | shopping bag | |
| 買い込み | かいこみ | buying; purchasing; stocking up on | |
| 青田買い | あおたがい | speculatively buying a rice harvest, while the fields are still green; recruiting of university students before the agreed date | |
| 押し目買い | おしめがい | buying when the market is down | |
| 買い物帰り | かいものがえり | on the way home from shopping | |
| マネキン買い | マネキンがい | buying all the clothes displayed on a mannequin | |
| 買いもん | かいもの | shopping; purchased goods | n5 |
| 買求める | かいもとめる | to buy | n2 |