(がい)

がい
prefix
foreign; outside; external
1. foreign; external
Prefix indicating something is from abroad or outside.
外車(がいしゃ)維持費(いじひ)(たか)い。
Foreign cars have high maintenance costs.
(がい) + (しゃ) = foreign car
外来(がいらい)()年々(ねんねん)()えている。
Foreign loanwords are increasing every year.
(がい) + (らい) = foreign-origin
外国語(がいこくご)(まな)ぶのは(たの)しい。
Learning a foreign language is fun.
2. outside; exterior
Prefix indicating the outer or external aspect of something.
(がい)からの圧力(あつりょく)()しない。
I won't yield to outside pressure.
Used as standalone noun meaning 'outside'
外壁(がいへき)()()える。
Repaint the exterior walls.
外見(がいけん)だけで(ひと)判断(はんだん)してはいけない。
You shouldn't judge people by their appearance alone.

(がい)〜 is a productive prefix meaning 'foreign' or 'outside.'

COMMON COMPOUNDS:

  • 外国(がいこく) (foreign country)
  • 外人(がいじん) (foreigner - informal)
  • 外来(がいらい) (foreign-origin; outpatient)
  • 外車(がいしゃ) (foreign car)
  • 外科(げか) (surgery - medical department)
  • 外交(がいこう) (diplomacy)
  • 外見(がいけん) (outward appearance)
  • 外出(がいしゅつ) (going out)
  • 外食(がいしょく) (eating out)

ANTONYM PREFIX:
(ない)〜 (internal; inside)

Related Words

Antonym: (ない)〜 (internal; inside)