tick vs assure

tick is a noun but assure is not a noun.

Word	Noun	Adjective	Verb	Adverb
tick	Yes	No	Yes	No
assure	No	No	Yes	No

tick (noun)	assure (noun)
any of two families of small parasitic arachnids with barbed proboscis; feed on blood of warm-blooded animals
a light mattress
a mark indicating that something has been noted or completed etc.
a metallic tapping sound

tick (verb)	assure (verb)
put a check mark on or near or next to	be careful or certain to do something; make certain of something
sew	inform positively and with certainty and confidence
make a clicking or ticking sound	assure somebody of the truth of something with the intention of giving the listener confidence
make a sound like a clock or a timer	make a promise or commitment
	make certain of