Mom, what's for dinner tonight?
うちの母さんは料理が上手だ。
My mom is good at cooking.
wife; the missus
Colloquial, used by a husband when speaking to or about his own wife, often with a familiar or slightly old-fashioned tone. Not used for someone else's wife.
うちの母さんがうるさくてね。
My wife is always nagging me.
母さん、ちょっとお茶を入れてくれ。
Honey, could you make some tea?
I got scolded by my mom because I didn't do my homework.
My little brother is always being clingy with mom.