The word “mom” can be capitalized depending on how it is used in a sentence or title. When used generically in a sentence such as: “my mom said to visit her,” then the word mom is lowercase because it is a generic noun.
Correct: My mom is the best.
However, if you are addressing your mom directly, such as when asking a question, then you should capitalize the word mom.
Correct: Can I go to the movies, Mom?
Capitalizing Other Family Members:
For more title capitalization questions, use our free title capitalization tool here.