exchanging
交換する
解説 Definition
exchanging は、exchange（交換する）の現在分詞・動名詞です。物、情報、意見などを互いに渡したり共有したりする動作を表します。
Exchanging is the present participle or gerund of exchange. It describes two or more people giving and receiving things, information, or ideas from one another, or replacing one item with another in return.
覚え方のコツ Memory Tip
原形 exchange に -ing を付けると、末尾の無音の e を落として exchanging になります。発音は exchange /ɪksˈtʃeɪndʒ/ の末尾 /dʒ/ を保ち、/ɪŋ/ を続けます。exchange gifts・phone numbers・ideas のように、二者が物や情報を互いに渡し合う場面で覚えましょう。単なる一方向の give との違いが要点です。
Begin with the base verb exchange. To add -ing, drop the final silent e and write exchanging, while keeping the /dʒ/ sound before the ending. The central idea is two-way movement: each side gives something and receives something in return. Picture people exchanging gifts, phone numbers, greetings, or ideas. This distinguishes exchange from a simple one-directional give. In “They are exchanging gifts,” it forms a continuous verb; in “Exchanging ideas is useful,” it functions as a gerund. The prefix and the idea of change can help you picture items passing outward and being replaced.
例文
They are exchanging gifts at the party.
彼らはパーティーで贈り物を交換しています。
We spent ten minutes exchanging phone numbers.
私たちは10分ほど電話番号を交換しました。
The students practiced exchanging ideas in English.
生徒たちは英語で意見を交換する練習をしました。
exchanging の類義語・関連語
exchanging の語源・成り立ち Etymology
ラテン語cambire（交換する）が古フランス語eschangierを経て中英語に入った。ex-（外へ）+change（変える）で「互いに外へ出し合う→交換する」の意。同根語にchange、interchangeがある。
Exchange came into Middle English through Old French eschangier, ultimately related to Late Latin cambiare or cambire, “to barter or exchange.” Its historical formation combines a prefix that developed into ex- with the ancestor of change. Exchanging is the inflected form made by removing the final silent e of exchange and adding -ing. Related English words include change and interchange, all sharing the broad idea of substitution, transfer, or mutual movement.
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