姑（しゅうとめ、shuutome）
- mother-in-law

The Japanese word 姑 (しゅうとめ, *shūtome*) primarily refers to one's husband's mother, or mother-in-law. It specifically indicates the mother of one's spouse, implying a familial relationship through marriage. The term carries cultural weight and often reflects traditional family dynamics in Japan.

⚫︎私の姑はとても親切です。 Translation: My mother-in-law is very kind. ⚫︎姑との関係は良好です。 Translation: My relationship with my mother-in-law is good. ⚫︎姑の家へよく行きます。 Translation: I often go to my mother-in-law's house.

The word 姑 is used in formal and informal contexts when referring to your husband's mother. It's important to use polite language and show respect when speaking *about* or *to* your mother-in-law, regardless of whether you are speaking directly to her or about her to someone else. It's also used to describe *her* relationships to others; for example, describing someone as the mother-in-law of your friend.

⚫︎ The word is typically written in kanji as 姑 (しゅうとめ, *shūtome*). ⚫︎ The hiragana reading is しゅうとめ (*shūtome*). ⚫︎ There is no variation in the okurigana; it is always written as しゅうとめ.

There aren't direct synonyms that are equally common and specific. However, related terms include: ⚫︎ お義母さん (おとうさん, *Otōsan*), or お母さん (おかあさん, *Okāsan*): While these literally translate to "mother," they are often used to address or refer to one's mother-in-law with respect. Using "お義母さん" more directly indicates this is the mother-in-law.

There aren't direct antonyms because it's a specific familial relationship. But the antonym, in the sense of the relationship, would be one's own mother, or 実の母 (じつのはは, *jitsu no haha*), meaning "biological mother."

姑は料理が上手です。 ・Translation: My mother-in-law is good at cooking. ・Explanation: This sentence describes a characteristic of the mother-in-law.

私は姑に感謝しています。 ・Translation: I am grateful to my mother-in-law. ・Explanation: This sentence expresses a feeling of gratitude towards the mother-in-law.

The kanji 姑 itself originally meant "husband's mother." The etymology of the kanji is related to the idea of a mother within the marital family structure. The current usage is a direct inheritance of how the kanji has been used historically within Japanese society.