lock up vs lock away

lock up and lock away both are verbs.

Word	Noun	Adjective	Verb	Adverb
lock up	No	No	Yes	No
lock away	No	No	Yes	No

As verbs, lock up and lock away are synonyms defined as:

lock up and lock away: place in a place where something cannot be removed or someone cannot escape

Other synonyms of lock up include lock, lock in, put away, shut away, shut up.

lock up (verb)	lock away (verb)
place in a place where something cannot be removed or someone cannot escape	place in a place where something cannot be removed or someone cannot escape
secure by locking