rolling
転がる
解説 Definition
rolling は roll(転がる・転がす)の現在分詞・動名詞です。物が地面や面の上を回りながら動いている様子を表します。
The present participle or gerund of roll, describing an object that is turning over and over while moving across a surface or down a slope.
覚え方のコツ Memory Tip
原形 roll に -ing を付けた現在分詞・動名詞で、語末の e を落とす変化はありません。roll /roʊl/ に対し rolling /ˈroʊlɪŋ/ と音節が増えます。ball、coin、wheel が面の上を回転しながら進む場面と、be rolling、keep rolling の形を一緒に覚えましょう。
Rolling is made by adding -ing directly to roll; no final letter is removed or doubled. Roll is pronounced /roʊl/, while rolling adds a second syllable, /ˈroʊlɪŋ/. Picture a round object such as a ball, coin, or wheel rotating as it travels across a floor or down a hill. Learn it in patterns such as “is rolling,” “was rolling,” and “kept rolling.” This sense involves both rotation and movement, unlike sliding, where an object moves across a surface without turning over.
例文
The ball is rolling down the hill.
ボールが丘を転がり落ちています。
A coin was rolling across the floor.
硬貨が床を転がっていました。
The wheel kept rolling after the bike stopped.
自転車が止まった後も、車輪は転がり続けました。
rolling の類義語・関連語
rolling の語源・成り立ち Etymology
古英語 rollian、古フランス語 roller を経てラテン語 rotula(小さな車輪)に由来。rot-(回転)が語根で、rotate(回転する)や role(元は巻物の意)と同根。丸いものが転がる原イメージから多様な意味に広がった。
Rolling is the -ing form of roll. Roll entered Middle English through Old French roller and is associated with Medieval Latin rotula, “a small wheel,” a diminutive of Latin rota, “wheel.” Its historical core is circular movement or something wound into a rounded form. Related English words connected with the Latin wheel root include rotate and rotation, although roll itself reached English through French.
同じレベルの英単語をもっと
外部辞書で調べる
この単語を英単語クイズで覚えよう