noun, noun which may take the genitive case particle 'no'
residing abroad; living overseas
Refers to the state of living in a foreign country. Often used in noun-modifying patterns like 海外在住の日本人 (Japanese people living abroad).
The number of Japanese people living abroad is increasing.
He has a lot of experience living overseas.
海外赴任 specifically refers to being posted overseas for work, while 海外在住 is a broader term for residing abroad for any reason.
在外 is a more formal, often official term for being located in a foreign country, commonly used in phrases like 在外公館 (diplomatic mission abroad). 海外在住 is more personal and descriptive.
Compound of 海外 (overseas) and 在住 (residing). The exact historical derivation is uncertain, but the word follows a standard Sino-Japanese compounding pattern.