get the picture vs compass

get the picture is not a noun while compass is a noun.

Word	Noun	Adjective	Verb	Adverb
get the picture	No	No	Yes	No
compass	Yes	No	Yes	No

As verbs, get the picture and compass are synonyms defined as:

Other synonyms of get the picture include apprehend, comprehend, dig, grasp, grok, savvy.

get the picture (noun)	compass (noun)
	navigational instrument for finding directions
	drafting instrument used for drawing circles
	an area in which something acts or operates or has power or control:
	the limit of capability

get the picture (verb)	compass (verb)
get the meaning of something	get the meaning of something
	travel around, either by plane or ship
	bring about; accomplish