Is it mom or mum?
Mom and mum are both less formal words for “mother.” Mom is used more frequently by US English speakers, while mum is used by UK English speakers.
Mom and mum follow the same capitalization rules. They are capitalized when used in place of a name (e.g., “I love you, Mom/Mum”) and lowercase otherwise (e.g., “My mom/mum is great”).
With QuillBot’s free Grammar Checker, you can choose your variant of English so that you always use the correct vocabulary.