戸外(こがい)

こがい
noun
outdoors; open air
formalgeography
1. outdoors; the open air; outside (a building)
The space outside the doors of a building. Formal and literary; common in written instructions, signage, and academic prose.
戸外(こがい)での運動(うんどう)を勧(すす)める。
Recommend outdoor exercise.
この植物(しょくぶつ)は戸外(こがい)でも育(そだ)つ。
This plant can grow outdoors as well.
気温(きおん)が下(さ)がる冬季(とうき)は戸外(こがい)での活動(かつどう)を控(ひか)えるよう呼(よ)びかけている。
We are calling on people to refrain from outdoor activities in winter when temperatures drop.

Compound of 戸(こ) (door) + 外(がい) (outside). Literally 'outside the door,' i.e., outdoors.

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Formal and literary. In speech and everyday writing, 屋外(おくがい) or 外(そと) are far more common.

Common collocations

Similar words

  • 屋外(おくがい): outdoor (of a building) — more common in modern usage; standard for signs and instructions
  • 野外(やがい): outdoor (in nature) — emphasizes natural settings, used for concerts and festivals
  • 外(そと): outside — everyday term; broadest in scope

Related Words

Compare: 屋外(おくがい) (outdoor)
Compare: 野外(やがい) (outdoor)
general
Added 2026.5.30 13:08 · Revised 2026.9.2 13:02
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