交換|こうかんkoukan[0]heiban (flat)

1. noun, suru verb, transitive verbexchange; interchange; switching; reciprocity; barter; substitution; replacement; clearing (of checks, cheques)
   あなたと席せきを交換こうかんしよう。↗

   Let me exchange seats with you.

• SynonymチェンジCasualColloquial loanword for changing or switching, including sides changing over in sports; 「交換」 focuses on exchanging things.
• SynonymトレードNeutralLoanword mainly for pro-player trades and securities or forex trading, also swapping cards and the like; 「交換」 is the general word for exchange.
• SynonymスワップWrittenLoanword mostly for financial swap deals or swapping computer memory; technical jargon. In everyday speech, say 「交換」.
• SynonymやりとりNeutralBack-and-forth of things or words (「メールのやり取り」); the focus is mutual passing, and it is common in speech.
• Synonym互換ごかんWrittenWritten word for things being interchangeable or swapped for one another (「互換性」), mostly computers and parts; the focus is on whether they can be swapped.
• Synonym取り交わすとりかわすWrittenFormal written verb for officially exchanging documents or pledges (「契約書を取り交わす」); the objects are mostly paperwork.
• Synonym取り替えるとりかえるNeutralEveryday verb for changing something or swapping (「電池を取り替える」); the default for routine replacement, while 「交換」 is more formal.
• Synonym替えかえNeutralNoun for a substitute or spare (「替えの靴下」), often as a suffix (「衣替え」); 「交換」 names the act of exchanging.
• Synonym交わすかわすWrittenWritten verb for exchanging words, glances and the like (「挨拶を交わす」); the objects are mostly abstract exchanges.
• Synonym引き換えひきかえNeutralExchanging against a voucher (「引き換え券」); also 「～と引き換えに」, meaning 'at the cost of'.
• Synonym引き換えるひきかえるNeutralVerb for redeeming tickets or vouchers, also 'to contrast with'; mostly redemption of vouchers, while 「交換」 is broader.
• Synonym差し替えさしかえNeutralNoun for replacing manuscripts, documents and the like (「差し替え版」); the focus is on swapping out part of something.
• Synonym入れ替わりいれかわりNeutralPeople or things taking turns or changing shifts, or swapping places (「入れ替わりに」); it looks at the process of replacement.
• Synonym取り替えっことりかえっこCasualColloquial, childlike word for two people swapping what they hold, with a playful feel; 「交換」 is more formal and much broader in use.
• SynonymエクスチェンジNeutralLoanword mostly in proper names or currency exchange (「エクスチェンジ」 counters); everyday speech uses 「交換」 or 「両替」.
• Related差し替えるさしかえるNeutralReplacing part of something with something else (「写真を差し替える」), mostly manuscripts and documents; 「交換」 also covers two-way exchange.
• Related置き換えるおきかえるWrittenWritten style: putting something else in place, moving things around, or swapping two (「言葉を置き換える」); the point is one thing taking the other's place.
• Related入れ替えいれかえNeutralReplacing the people or things inside something (「空気の入れ替え」「メンバーの入れ替え」); the focus is on renewing the contents.
• Related乗り換えるのりかえるNeutralTransferring between trains or buses, by extension switching to another company or system (「他社に乗り換える」); 「交換」 is never used for transfers.
• Related振り替えるふりかえるWrittenWritten style: transferring money or moving a date (「休日を振り替える」); it is about redirecting, not exchanging things.
• RelatedコンバートWrittenWritten loanword for converting data formats or moving players to new positions; technical. 「交換」 means exchange or replacement.
• Related転換てんかんWrittenWritten word for a change of policy or direction (「方向転換」「気分転換」); the point is turning, not exchanging.
• Related切り替わるきりかわるNeutralIntransitive: a state or screen switches over (「画面が切り替わる」); it looks at the result of switching. 「交換」 is a transitive exchange.
• Related付け替えるつけかえるNeutralDetaching the old and fitting a new one (「電球を付け替える」); also accounting transfers. 「交換」 does not imply attaching.
• Relatedすり替えるすりかえるNeutralSecretly switching items or slipping in a different point (「論点をすり替える」), with a deceptive nuance 「交換」 itself lacks.
• Related取り替えとりかえNeutralNoun for replacement or changing, an everyday word; 「交換」 is more formal and written, and also covers mutual exchange.
• Relatedすげ替えるすげかえるWrittenWritten style for replacing personnel or parts (「首をすげ替える」), often used for shuffling staff; 「交換」 is rarely said of people this way.
• Related繰り替えるくりかえるWrittenRare written word for shifting or reallocating schedules and funds; everyday speech prefers 「入れ替える」 or 「振り替える」.
• Related掛け替えるかけかえるNeutralReplacing hung pictures or plaques, or rebuilding a bridge (「橋を架け替える」); limited to things that hang or are mounted.
• Related置換ちかんWrittenWritten, technical term for substitution (「文字列を置換する」); also a mathematics and chemistry term. Everyday speech says 「置き換え」.
• Related付け替えつけかえNeutralNoun for detaching the old and fitting the new, mostly parts and equipment; 「交換」 can also mean mutual exchange.

Use 「交換」 for mutual exchange or replacing one thing with another, as in 「名刺交換」. For everyday replacement the natural verb is 「取り替える」; for swapping part of a manuscript or document, 「差し替える」; for renewing what's inside, 「入れ替え」. For an exchange of messages or words, use 「やり取り」 or 「交わす」. Loanwords are narrower: 「トレード」 trades, 「スワップ」 financial or technical swaps, 「エクスチェンジ」 currency exchange. Directional or abstract changes take 「転換」「切り替わる」「乗り換える」; compatibility is 「互換」.

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

1. お互たがいに取り換とりかえること。
2. ある物ものを別べつの物ものへと取り換とりかえる。
3. 相手あいてに自分じぶんのものを与あたえ、同種どうしゅまたは等価とうかなものを、相手あいてからも受け取うけとる。
4. 物ものや人ひとを、相手あいてに渡わたし、相手あいてからも受け取うけとる。
5. 情報じょうほう、意見いけん、感情かんじょうなどを、相手あいてに伝つたえ、相手あいてからも受け取うけとる。
6. （外交がいこうの一環いっかんとして）大使たいしや公使こうしを、相手あいてへ派遣はけんし、相手あいてからも派遣はけんされる。
7. （西洋せいよう式しきの結婚式けっこんしきの儀式ぎしきとして）結婚相手けっこんあいてが身みに着つける指輪ゆびわを、相手あいての指ゆびに着つける。