Barf
Part of speech: noun
Definition: vomit
Part of speech: verb
Definition: To vomit.
Vomitus
Part of speech: noun
Definition: vomit, the product of an emesis.
Barf as a noun is vomit while Vomitus as a noun is vomit, the product of an emesis.
Part of speech: noun
Definition: vomit
Part of speech: verb
Definition: To vomit.
Part of speech: noun
Definition: vomit, the product of an emesis.
We hope you now know whether to use Barf or Vomitus in your sentence.