ふくらむ
fukuramu

Godan Verb (mu)

1. to expand; to swell (out); to get big; to become inflated

Intransitive
一陣 いちじん かぜをうけて がふくらんだ。
ichijinno kazeo ukete hoga fukuranda.
A gust of wind swelled the sails.
Other forms: