(also US stepmom)
Definition of stepmum in English:
Informal term for stepmother.
- I can't decide whether I've been blessed or unfortunate to have two mothers - my birth mother and my stepmum.
- On birthdays and at Christmas I'd only get one set of presents, whereas my friends got tons from stepdads, stepmums, social workers.
- He said he has not seen the youngster for 18 months, despite the fact that he is desperate to introduce the nine-year-old boy to his new stepmum.