put back vs replace

put back and replace both are verbs.

Word	Noun	Adjective	Verb	Adverb
put back	No	No	Yes	No
replace	No	No	Yes	No

As verbs, put back and replace are synonyms defined as:

put back (verb)	replace (verb)
put something back where it belongs	substitute a person or thing for (another that is broken or inefficient or lost or no longer working or yielding what is expected)
cost a certain amount	put something back where it belongs
	put in the place of another; switch seemingly equivalent items
	take the place or move into the position of