姨
yí · HSK 7
aunt
👩 女 woman radical + 夷 (yí) phonetic = a female relative, your mother's sister
The 女 radical on the left flags a female family member; the right side 夷 supplies the yí sound. Distinct from 姑 (gū), the father's-side aunt.
姨 — woman radical 女 + yí 夷
A semantic-phonetic compound: 女 (woman) gives the meaning, while 夷 supplies the sound 'yí'. Originally referring to a mother's sister (maternal aunt), it later extended to a wife's sister and, in modern usage, as a polite address for an older woman of one's mother's generation.