lock in vs lock up

lock in and lock up both are verbs.

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

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

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

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

lock in (verb)	lock up (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
close with or as if with a tight seal	secure by locking