屋内(おくない)

おくない
noun
indoors; inside a building
1. indoors; inside a building; interior
The inside of a building or enclosed space. Used as a noun or as a modifier (屋内の) to describe things located or happening indoors.
屋内(おくない)で遊(あそ)ぼう。
Let's play indoors.
雨(あめ)なので屋内(おくない)プールに行(い)った。
Since it was raining, we went to the indoor pool.
この施設(しせつ)は屋内(おくない)が全面(ぜんめん)禁煙(きんえん)になっている。
This facility is entirely non-smoking indoors.

WORD FORMATION:
屋(おく) (roof, building) + 内(ない) (inside)

COMMON COLLOCATIONS:

  • 屋内(おくない)プール: indoor pool
  • 屋内(おくない)駐車場(ちゅうしゃじょう): indoor parking garage
  • 屋内(おくない)競技(きょうぎ): indoor sports
  • 屋内(おくない)施設(しせつ): indoor facility
  • 屋内(おくない)禁煙(きんえん): no smoking indoors

CONTRAST:

  • 屋内(おくない): indoors (inside a building — formal)
  • 屋外(おくがい): outdoors (outside a building — the antonym)
  • 室内(しつない): inside a room (more specific)
  • 中(なか): inside (general, casual)

USAGE:
More formal than 中(なか) and specifically refers to being inside a building, not just any enclosed space. Common in signage, facility descriptions, and regulations.

Related Words

Antonym: 屋外(おくがい) (outdoors)
general
Added 2026.3.23 19:19 · Revised 2026.4.3 9:02
18500/18948_okunai