()

へる
verb (godan)
to decrease, to reduce
1. to decrease, to diminish
To become less in number or amount.
(なか)()った。
I'm hungry.
Literally: My stomach emptied
最近(さいきん)人口(じんこう)()(つづ)けている。
Recently, the population has been continuing to decrease.
(はたら)(ひと)(かず)()ったせいで、人手(ひとで)不足(ぶそく)深刻(しんこく)になっている。
Because the number of workers has decreased, the labor shortage has become serious.

()る is an intransitive verb meaning to decrease or diminish in quantity or amount.

TRANSITIVITY:

  • Type: 自動詞(じどうし) (intransitive)
  • Pair: ()らす (transitive, to reduce)

ASPECT (ている):
()っている indicates a state of having decreased or being reduced.

COMMON PATTERNS:

  • 人口(じんこう)()る: population decreases
  • ()()げが()る: sales decrease
  • 体重(たいじゅう)()る: weight decreases
  • (なか)()る: to be hungry (lit. stomach becomes empty)

CONTRAST:

  • ()る: to decrease (intransitive)
  • ()える: to increase (intransitive)

NOTE:
(なか)()った is a casual way to say "I'm hungry." More polite: お(なか)()きました.