mum
noun /mʌm/
  /mʌm/
(British English) (North American English mom)
 (informal)- a mother- Call your mum.
- My mum says I can't go.
- Happy Birthday, Mum.
- A lot of mums and dads have the same worries.
- She's a single mum with two kids.
- expectant/new/young/teenage mums
- stay-at-home/working mums
 Extra ExamplesTopics Family and relationshipsa1- Bella lives with her mum in Oxford.
- Marc waved goodbye to his mum.
- The cat acted as a surrogate mum to the chicks.
- The group is aimed at new mums with young babies.
- She's a single mum raising two kids on her own.
- Young mums can often find themselves isolated.
- She has just become the proud mum of a baby girl.
 Oxford Collocations Dictionaryadjective- young
- single
- unmarried
- …
 - mum and dad
 Word Originnoun mid 17th cent.: abbreviation of mummy ‘mother’.