1.
overseas, abroad, foreign countries
Countries outside of Japan, typically accessed by crossing the sea.
海外 means overseas or abroad—countries beyond Japan's shores.
COMPONENTS:
海 (sea) + 外 (outside) = beyond the sea
COMMON COMPOUNDS:
- 海外旅行: overseas travel
- 海外出張: business trip abroad
- 海外留学: studying abroad
- 海外赴任: overseas assignment
- 海外進出: overseas expansion (business)
CONTRAST WITH 外国:
- 海外: emphasizes 'across the sea' from Japan's perspective
- 外国: foreign country (more general term)
COMMON PATTERNS:
- 海外に行く: to go abroad
- 海外で働く: to work overseas
- 海外から来る: to come from abroad
国内 (domestic) is the opposite of 海外.