買い|かいkai[0]heiban (flat)

1. nounbuying; shopping
   安物やすもの買かいの銭失ぜにうしない。↗

   Buy cheap and waste your money.
2. nounbuyer
3. nounpurchase

• Synonym購入こうにゅうWrittenWritten/formal prose. A purchase, often business or official, as in 「購入手続き」; 「買い」 mostly forms compounds and can mean bullish stock buying.
• Synonym購買こうばいWrittenWritten/formal prose. Purchase, as in 「購買意欲」, consumers' desire to buy; also a company procurement department or a school co-op store.
• Related買取かいとりNeutralNeutral. A business buying up used goods or taking trade-ins, as in 「買取店」; the focus is a merchant buying from customers, not everyday shopping.
• Related買い上げかいあげNeutralNeutral. A government or municipality buying up private land and assets, or a customer's purchase — the latter often as the honorific 「お買い上げ」.
• Related買収ばいしゅうWrittenWritten/formal prose. Corporate acquisition, a neutral term; it also means bribery or buying people off, which carries a negative shade.
• Related買い物かいものNeutralNeutral. Everyday shopping, the most common word, online shopping included; also the things bought or a bargain worth getting.
• Related買い付けかいつけNeutralNeutral. Procurement: bulk buying of merchandise, also buying in stocks, art or real estate; plus one's regular store or favourite brand.
• Related買い込みかいこみNeutralNeutral. Buying in bulk to stock up, as in 「食料の買い込み」; the emphasis is on laying in supplies.
• Antonym売りうりNeutralNeutral. Selling or a selling point; the direct opposite of 「買い」.

Use 「買い」 in compounds for buying or for bullish stock buying, as in 「買い物」「まとめ買い」「今が買いだ」. For a formal purchase say 「購入」, for a merchant buying used goods 「買取」, for a corporate takeover 「買収」, and for everyday shopping 「買い物」; the opposite of buying is 「売り」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 買かうこと。特とくに株かぶなどの値上ねあがりを見越みこして買かうこと。