(ないがい)

ないがい
noun
inside and outside; domestic and foreign
1. inside and outside
Both the interior and exterior of something.
To inspect both the inside and outside of a building.
I cleaned both the inside and outside of the house.
I washed both the inside and outside of the car.
They have a good reputation both inside and outside the company.
2. domestic and foreign; home and abroad
Both within a country and internationally.
It's attracting attention from both home and abroad.
Analyze domestic and international conditions.
Both domestic and foreign companies participated.
It's popular among domestic and foreign investors.
内外(ないがい)から批判(ひはん)()けた
It received criticism from both home and abroad.
3. approximately
About (a certain number); roughly.
There were approximately 100 participants.
The cost is approximately 500,000 yen.
It takes approximately one hour to arrive.
People around 30 years old.
The weight is approximately one kilogram.
Approximately 200 people gathered.

内外(ないがい) combines (ない) (inside) + (がい) (outside), with three distinct uses.

MEANINGS:
1. Inside and outside (physical): 建物(たてもの)内外(ないがい)
2. Domestic and foreign: (くに)内外(ないがい)
3. Approximately (with numbers): 100(にん)内外(ないがい)

COMMON EXPRESSIONS:

  • (くに)内外(ないがい): domestic and international
  • (しゃ)内外(ないがい): inside and outside the company
  • 内外(ないがい)情勢(じょうせい): domestic and international conditions
  • 内外(ないがい): approximately (formal register)

NOTE ON "APPROXIMATELY":
The "approximately" meaning is more formal than (やく) or ぐらい. Often seen in news and business contexts.