steal vs rip off

steal is a noun but rip off is not a noun.

Word	Noun	Adjective	Verb	Adverb
steal	Yes	No	Yes	No
rip off	No	No	Yes	No

As verbs, steal and rip off are synonyms defined as:

Other synonyms of steal include rip.

steal (noun)	rip off (noun)
a stolen base; an instance in which a base runner advances safely during the delivery of a pitch (without the help of a hit or walk or passed ball or wild pitch)
an advantageous purchase

steal (verb)	rip off (verb)
steal a base	remove by pulling or ripping violently and forcefully
move stealthily	take without the owner's consent
take without the owner's consent	deprive somebody of something by deceit