Is 師奶 (see lai) strictly a Cantonese word? Is it a neutral word or does it have a negative connotation?
"師奶(师奶)" refer to a married woman, and is popular used in Southern China. Is is rarely used in Mandarin.


  師奶（「奶」字要讀高N音，同「拉」嘅音調一樣），太太嘅俗稱。主要係街坊之間用嚟打招呼嘅用詞。哩個詞語亦都可以用嚟取笑嗰啲唔多化粧，外表睇起上嚟土土地好似傳統家庭主婦咁嘅未婚女士，有所謂「師奶仔」嘅叫法。1


translate to Simplified Chinese "师奶（‘奶’字要读高N音，和‘拉’到音调一样），太太的俗称。主要是街坊邻居用来打招呼的词。也可以用来嘲笑不修边幅，看起来向像家庭主妇的未婚女士，这些未婚女士也会被叫做‘师奶仔’。"

translate to English "师奶，refer to 太太(太太 is not wife but married woman in here). It is often used among the neighbors. A makeup-free unmarried woman who looks like a housewife is mocked and called '师奶仔'. "

粤语维基百科