n.[C]

1. 姐妹；姐姐，妹妹
   She is elder sister to Susan.

   她是苏珊的姐姐。

2. （情同姐妹的）挚友；（女性）好友；【喻】姐妹（情同手足的女子）
   Cathy was like a sister to me.

   凯茜待我像亲姐妹一样。

3. 女会友；【宗】修女，女教友
4. 【英】护士长，护士
5. 【美】【口】（用作称呼）大姐，小妹，娘儿们
6. 姑子；姨子；嫂子；弟媳；妯娌
7. 妇女运动的姐妹

a.[Z]

1. 姐妹关系的
2. 如同姐妹的
   Ours and theirs are sister schools.

   我们学校和他们学校是姐妹学校。

vt.

1. 姐妹似地对待
2. 对……以姐妹相称

n.

1. a woman or girl in relation to other daughters and sons of her parents.
2. a female friend or associate.
   ▸a fellow woman.
   ▸N. Amer. a fellow black woman.
3. a member of a religious order of women.
4. (often Sister) Brit. a senior female nurse.
5. [as modifier] denoting an organization or a place which bears a relationship to another of common origin or allegiance.