転がす

ころがす · korogasu · JLPT N2 · verb-godan

to roll

⚽ 転がる (roll by itself) + causative す = make something roll: 転がす

転がる is the intransitive 'to roll', where the thing rolls on its own. Adding the causative suffix す makes it transitive: 転がす, to roll something.

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