putting to death vs termination

putting to death and termination both are nouns.

Word	Noun	Adjective	Verb	Adverb
putting to death	Yes	No	No	No
termination	Yes	No	No	No

As nouns, termination is a hypernym of putting to death; that is, termination is a word with a broader meaning than putting to death:

Other hypernyms of putting to death include conclusion, ending.

putting to death (noun)	termination (noun)
the act of terminating a life	the act of ending something
	the end of a word (a suffix or inflectional ending or final morpheme)
	something that results
	a place where something ends or is complete
	a coming to an end of a contract period