Coma is a noun which means “unconscious or deep sleep.”
- The boy was hit so hard on the head that he went into coma.
- She died because she had slipped into coma.
Comma is a noun which is a “punctuation mark (,) used to indicate pause or to wait in the sentence.
- Dave did the cleaning, while Sam did cooking.
- The shopkeeper had so many varieties of fruits like apples, mango, banana, grapes.