tick vs suss out

tick is a noun but suss out is not a noun.

Word	Noun	Adjective	Verb	Adverb
tick	Yes	No	Yes	No
suss out	No	No	Yes	No

tick (noun)	suss out (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)	suss out (verb)
put a check mark on or near or next to	examine so as to determine accuracy, quality, or condition
sew
make a clicking or ticking sound
make a sound like a clock or a timer