noun
mythical island of women; isle of women
Refers to a legendary island inhabited solely by women, appearing in classical Japanese literature and folklore.
『女護の島』は、昔話や古い地誌に登場する伝説の島だ。
Nyogo-no-shima is a legendary island that appears in old tales and ancient topographies.
noun
Extended modern usage for any place or event where only women are present; often used humorously or figuratively.
今日の集まりは男性が一人もいなくて、まるで女護の島だね。
There isn't a single man at today's gathering; it's like an isle of women.
The term is composed of 女護 (nyogo, 'woman-protecting') and 島 (shima, 'island'). The exact origin is uncertain, but it is associated with medieval Japanese legends of distant islands inhabited only by women.