noun
loss of citizenship; denaturalization; expatriation
Legal term for the involuntary or voluntary loss of one's nationality. Often used in official contexts.
国籍喪失の手続きは国によって異なる。
The procedure for loss of citizenship varies by country.
彼は他国の市民権を取得したため、国籍喪失となった。
He lost his citizenship because he acquired citizenship of another country.
Compound of 国籍 (nationality) and 喪失 (loss, forfeiture).