shape up vs get on

shape up and get on both are verbs.

Word	Noun	Adjective	Verb	Adverb
shape up	No	No	Yes	No
get on	No	No	Yes	No

As verbs, shape up and get on are synonyms defined as:

Other synonyms of shape up include advance, come along, come on, get along, progress.

shape up (verb)	get on (verb)
develop in a positive way	develop in a positive way
	appear in a show, on T.V. or radio
	grow old or older
	get up on the back of
	grow late or (of time) elapse
	get on board of (trains, buses, ships, aircraft, etc.)
	have smooth relations