1.
to swell; to expand; to bulge
To become larger by swelling or inflating.
パンが膨らんできた。
The bread has started to rise.
風船が膨らんだ。
The balloon inflated.
2.
to grow; to increase (abstract)
For expectations, hopes, or debts to grow larger.
期待が膨らむ。
Expectations are growing.
Abstract usage
膨らむ is an intransitive godan verb.
TRANSITIVE/INTRANSITIVE PAIR:
- 膨らませる (transitive): to inflate, to swell
- 膨らむ (intransitive): to swell, to inflate
COMMON COLLOCATIONS:
- パンが膨らむ: bread rises
- 風船が膨らむ: balloon inflates
- 夢が膨らむ: dreams grow
- 期待が膨らむ: expectations grow
- 借金が膨らむ: debts pile up