take off vs go away

take off and go away both are verbs.

Word	Noun	Adjective	Verb	Adverb
take off	No	No	Yes	No
go away	No	No	Yes	No

As verbs, go away is a hypernym of take off; that is, go away is a word with a broader meaning than take off:

Other hypernyms of take off include go forth, leave.

take off (verb)	go away (verb)
remove clothes or shoes	get lost, as without warning or explanation
take away	go away from a place
make a subtraction	move away from a place into another direction
prove fatal	become invisible or unnoticeable
mimic or imitate in an amusing or satirical manner
depart for someplace
get started or set in motion, used figuratively
depart from the ground
take time off from work; stop working temporarily