go-around vs wave-off

go-around and wave-off both are nouns.

Word	Noun	Adjective	Verb	Adverb
go-around	Yes	No	No	No
wave-off	Yes	No	No	No

As nouns, go-around and wave-off are synonyms defined as:

go-around and wave-off: an approach that fails and gives way to another attempt

Other synonyms of go-around include overshoot.

go-around (noun)	wave-off (noun)
an approach that fails and gives way to another attempt	an approach that fails and gives way to another attempt