rake-off vs rake off

rake-off is a noun but rake off is not a noun.

Word	Noun	Adjective	Verb	Adverb
rake-off	Yes	No	No	No
rake off	No	No	Yes	No

rake-off (noun)	rake off (noun)
a percentage (of winnings or loot or profit) taken by an operator or gangster

rake-off (verb)	rake off (verb)
	take money from an illegal transaction