(n.) the appellation to address one's older brother's wife; (slang)the appellation to address the wife / girlfriend of one's friend to show respect; the girlfriend / wife of the leader in a gang.
Definitions (粵典–words.hk)
名詞
阿哥嘅老婆 elder brother's wife; sister-in-law on one's elder brother's side
平時我阿嫂負責煮飯。
平时我阿嫂负责煮饭。
ping4 si4 ngo5 aa3 sou2 fu6 zaak3 zyu2 faan6. Usually my sister-in-law would do the cooking.
名詞
仔嘅老婆;新抱 daughter-in-law
阿嫂好好㗎,會幫阿仔理財。
阿嫂好好㗎,会帮阿仔理财。
aa3 sou2 hou2 hou2 gaa3, wui5 bong1 aa3 zai2 lei5 coi4. My daughter-in-law is great, she helps with my son's financial planning.
名詞
朋友嘅老婆或者女朋友(量詞:個) a friend's wife or girlfriend
你出嚟睇波,阿嫂會唔會嬲你唔陪佢?
你出嚟睇波,阿嫂会唔会嬲你唔陪佢?
nei5 ceot1 lai4 tai2 bo1, aa3 sou2 wui5 m4 wui5 nau1 nei5 m4 pui4 keoi5? If you come watch the football match, would your wife be mad at you because you don't stay with her?
Definitions (Wiktionary)
noun, Cantonese, Hakka, Min-Nan, term-of-address
married woman of the same generation