also: しゅうと · しうとめ · しいとめ
noun
Refers specifically to one's spouse's mother. The term is neutral but can carry traditional connotations of a strict or meddlesome figure in family contexts.
See also: 舅
姑と同居するのは大変だ。
Living with one's mother-in-law is tough.
彼女は姑
She is caring for her mother-in-law.