rinse vs rinse off

rinse is a noun but rinse off is not a noun.

Word	Noun	Adjective	Verb	Adverb
rinse	Yes	No	Yes	No
rinse off	No	No	Yes	No

As verbs, rinse and rinse off are synonyms defined as:

rinse (noun)	rinse off (noun)
washing lightly without soap
the act of giving a light tint to the hair
the removal of soap with clean water in the final stage of washing
a liquid preparation used on wet hair to give it a tint

rinse (verb)	rinse off (verb)
rinse one's mouth and throat with mouthwash	wash off soap or remaining dirt
wash off soap or remaining dirt
clean with some chemical process