head for the hills vs break away

head for the hills and break away both are verbs.

Word	Noun	Adjective	Verb	Adverb
head for the hills	No	No	Yes	No
break away	No	No	Yes	No

As verbs, head for the hills and break away are synonyms defined as:

head for the hills and break away: flee; take to one's heels; cut and run

Other synonyms of head for the hills include bunk, escape, fly the coop, hightail it, lam, run, run away, scarper, scat, take to the woods, turn tail.

head for the hills (verb)	break away (verb)
flee; take to one's heels; cut and run	break off (a piece from a whole)
	flee; take to one's heels; cut and run
	move away or escape suddenly
	withdraw from an organization or communion
	interrupt a continued activity