買い入れる・買入れる|かいいれるkaiireru[4]nakadaka (mid-high)

Common
Which spelling to use
買い入れる買い入れる is the most common written form of this word and the form learners should choose by default.
買入れる買入れる is a less common written variant of 買い入れる. You may encounter it, but it is not the first choice for learners.
Definitions
  1. ichidan verb, transitive verbto purchase; to buy in
Conjugation
Dictionary form買い入れる(かいいれる)
Polite (masu)買い入れます(かいいれます)
Negative (nai)買い入れない(かいいれない)
polite (masen)買い入れません(かいいれません)
classical zu / nu買い入れず・買い入れぬ(かいいれず・かいいれぬ)
Past (ta)買い入れた(かいいれた)
polite (mashita)買い入れました(かいいれました)
Past negative (nakatta)買い入れなかった(かいいれなかった)
polite (masen deshita)買い入れませんでした(かいいれませんでした)
Te form買い入れて(かいいれて)
Potential買い入れられる(かいいれられる)
Passive買い入れられる(かいいれられる)
Causative買い入れさせる(かいいれさせる)
Causative passive買い入れさせられる(かいいれさせられる)
Conditional (ba)買い入れれば(かいいれれば)
tara買い入れたら(かいいれたら)
Volitional買い入れよう(かいいれよう)
polite (mashou)買い入れましょう(かいいれましょう)
Imperative買い入れろ(かいいれろ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • Synonym買取かいとりWrittenWritten noun for buying out or a shop taking used goods off customers' hands — closer to the trade-in and buy-back trade than 「買い入れる」.
  • Synonym購入こうにゅうWrittenWritten noun centred on the act of buying itself; more at home in formal settings than 「買い入れる」.
  • Synonym買い取るかいとるNeutralNeutral verb for paying to make something your own or buying out rights; stresses ownership more than 「買い入れる」.
  • Synonym購買こうばいWrittenWritten noun for organizations procuring supplies in bulk; also names a school co-op or campus store.
  • Synonym買い付けるかいつけるNeutralNeutral verb for buying in bulk or purchasing regularly at the same place; leans more toward batch and repeat buying than 「買い入れる」.
  • Synonym買い受けるかいうけるWrittenWritten term for paying to acquire goods or rights; reads like legal paperwork and feels stiffer than 「買い入れる」.
  • Related買い込むかいこむNeutralNeutral verb for stocking up, buying in large amounts to keep on hand; puts more weight on quantity than 「買い入れる」.
  • Related買い上げるかいあげるFormalFormal verb for the state or public bodies buying up goods from private citizens; more official in flavour than 「買い入れる」.
  • Related買い求めるかいもとめるWrittenWritten word for paying to get something you want, with a slightly solemn tone; 「買い入れる」 is about buying in for yourself.
  • Related買収ばいしゅうWrittenWritten noun for corporate takeovers and acquisitions, or buying people off; belongs to the world of business battles, unlike 「買い入れる」.
  • Related買うかうNeutralThe everyday word for buying anything; far more casual than the business-flavoured 「買い入れる」.
  • Related購うあがなうWrittenRare written word for paying to obtain something, with an archaic elegance; written 「贖う」 it usually means to atone for or redeem.
  • Antonym売り払ううりはらうNeutralNeutral antonym: to sell off everything, parting with it all — the reverse of 「買い入れる」.
  • Antonym売却するWrittenWritten antonym: to sell off property or assets — the selling-side counterpart of 「買い入れる」.

Use 「買い入れる」 for buying in goods for your own use or stock — a business-flavoured word, as in 「原料を買い入れる」. For everyday buying say 「買う」; in formal contexts 「購入」. For buying out or taking ownership, 「買い取る」; for stocking up in bulk, 「買い込む」 or 「買い付ける」; for official purchases by government bodies, 「買い上げる」. The opposites are 「売り払う」 and 「売却する」.

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

Japanese definitions
  1. 物ものを買かって自分じぶんの物ものにする。
  2. 物ものを多おおく一斉いっせいに買かう。
Kanji in this word

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