also: こじゅうとめ
sister-in-law (husband's sister)
Specifically refers to one's husband's sister. In traditional contexts, can carry a nuance of a critical or meddlesome in-law, but the basic meaning is simply the familial relationship.
My sister-in-law (husband's sister) is very kind.
I went shopping with my sister-in-law (husband's sister).
Standard kanji spelling.
Kana spelling; may be used for clarity or in casual writing.
Alternate reading with the same meaning; slightly more colloquial or feminine.
Formed from 小 and しゅうと “a spouse’s sibling or parent-in-law,” with sequential voicing in じゅうと. The word historically had broader in-law senses before becoming especially associated with a husband’s sister.