break away vs get away

break away and get away both are verbs.

Word	Noun	Adjective	Verb	Adverb
break away	No	No	Yes	No
get away	No	No	Yes	No

As verbs, get away is a hypernym of break away; that is, get away is a word with a broader meaning than break away:

Other hypernyms of break away include break loose, escape.

break away (verb)	get away (verb)
break off (a piece from a whole)	escape potentially unpleasant consequences; get away with a forbidden action
flee; take to one's heels; cut and run	run away from confinement
move away or escape suddenly	remove oneself from a familiar environment, usually for pleasure or diversion
withdraw from an organization or communion
interrupt a continued activity