tumbling
転がる
解説 Definition
tumbling は tumble（転がる、倒れる）の現在分詞・動名詞です。「転がっている」「転がること」を表し、人や物が勢いよく回転しながら落ちたり動いたりする場面で使われます。
Tumbling is the present participle or gerund of tumble. It describes a person or thing falling, rolling, or moving with repeated uncontrolled turns, especially when traveling downward or being carried along by force.
覚え方のコツ Memory Tip
tumbling は tumble「転がる・倒れる」の語末の無音eを取って-ingを付けた形で、発音は /ˈtʌmblɪŋ/ です。物が勢いよく回転しながら動く像を核に、tumbling down the hill、stones tumbling into the riverのような方向表現と一緒に覚えます。
Start with the base verb tumble, meaning to fall or roll with repeated turns. To form tumbling, remove the final silent e and add -ing: tumble → tumbling, pronounced /ˈtʌmblɪŋ/. Picture a ball tumbling down a hill or stones tumbling into a river; the repeated rotation and lack of control distinguish tumble from the more neutral roll. Learn it with direction phrases such as tumbling down, tumbling across, and tumbling into. Depending on the sentence, it can be a participle describing ongoing movement or a gerund naming the activity.
例文
The ball is tumbling down the hill.
ボールが丘を転がり落ちています。
Leaves were tumbling across the empty street.
葉が人気のない通りを転がっていました。
He watched the stones tumbling into the river below.
彼は石が下の川へ転がり落ちるのを見ていました。
tumbling の類義語・関連語
紛らわしい語
tumbling の語源・成り立ち Etymology
中英語tumblen（転がる・跳ねる）から。古英語tumbian、古高ドイツ語tūmōn（回転する）と同源。体を回転させる動作が原義で、転倒や曲芸の意味に発展した。関連語：tumbler（タンブラー＝転がるコップ）、tumult（騒動）。
Tumbling is formed from tumble by dropping its final silent e and adding the participial suffix -ing. Tumble developed from Middle English tumblen and is related to Old English tumbian, referring to turning, dancing, or performing repeated movements. Its central idea is bodily or physical rotation. From that idea came modern senses involving uncontrolled falls, rolling movement, and acrobatic activity. The form tumbling can function either in a verb phrase or as a noun naming such movement.
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