retaining
保持する
解説 Definition
retaining は retain（保持する、保つ）の現在分詞・動名詞です。何かを失わずに持ち続ける、または状態を保つという意味で使われます。
Retaining is the present participle or gerund form of retain. It describes continuing to possess, preserve, or hold something, or preventing a substance, quality, or condition from being lost.
覚え方のコツ Memory Tip
retaining は retain「失わずに保持する」に -ing を付けた現在分詞・動名詞で、retain のつづりを変えず retaining となります。「手元につなぎ留める」という核から、retain heat「熱を保つ」、retain water「水を保持する」、retain the original file「元のファイルを残す」のように、保持する対象と一緒に覚えましょう。
Link retaining to the base verb retain, meaning “keep rather than lose or release.” Add -ing without changing the spelling of retain: retain becomes retaining, not “retainning.” Imagine a container retaining heat, soil retaining water, or a person retaining the original file. These examples share one central picture: something remains held instead of escaping, disappearing, or being discarded. Grammatically, retaining can form a continuous verb, as in “She is retaining the file,” or act as a gerund, as in “Retaining water is important.” This pattern helps connect both the form and its practical uses.
例文
The box is good for retaining heat.
その箱は熱を保つのに適しています。
She is retaining the original file.
彼女は元のファイルを保持しています。
Retaining water is important for this soil.
この土には水を保持することが重要です。
retaining の類義語・関連語
retaining の語源・成り立ち Etymology
retaining は retain に -ing が付いた形で、ラテン語 retinere「後ろに引いて保つ」が古フランス語を経て英語に入った語です。re-「後ろへ」+ tenere「つかむ」から成り、retention や tenant も同根で、「手元につなぎとめる」感覚です。
Retaining is formed by adding -ing to retain. Retain entered English through Old French retenir and ultimately comes from Latin retinēre, “to hold back or keep.” The Latin form combines re-, here carrying the sense “back,” with tenēre, “to hold.” This physical idea of holding something back developed into the broader modern meanings of keeping possession, preserving a quality, or preventing loss. Related forms such as retention preserve the same semantic core of continued holding.
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