ホストマザー

noun

host mother

A woman who hosts a student, traveler, or participant in a homestay program, providing accommodation and family life.

• 留りゅう学がく中ちゅうはホストマザーがとても親しん切せつにしてくれた。

  During my study abroad, my host mother was very kind to me.

noun

surrogate mother

A woman who carries and gives birth to a child for another person or couple. In Japanese, 代理母 is the more common term; ホストマザー in this sense is rare and may be influenced by English usage.