膨らむ

ふくらむ

to expand, to swell (out), to get big, to become inflated

JLPT N2

Details

Part of Speech:
Godan verb with 'mu' ending, Intransitive verb
Romaji:
fukuramu

Example Sentences

風船が膨らむと、空に飛び出してしまう。

When the balloon inflates, it will fly out into the sky.

この風船は膨らむととても大きな音がする。

This balloon makes a very loud noise when it inflates.