slay vs bump off

slay and bump off both are verbs.

Word	Noun	Adjective	Verb	Adverb
slay	No	No	Yes	No
bump off	No	No	Yes	No

As verbs, slay and bump off are synonyms defined as:

Other synonyms of slay include dispatch, hit, murder, off, polish off, remove.

slay (verb)	bump off (verb)
kill intentionally and with premeditation	kill intentionally and with premeditation
to succeed greatly