tick vs tictac

tick and tictac both are nouns.

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

As nouns, tictac is a hyponym of tick; that is, tictac is a word with a more specific, narrower meaning than tick:

Other hyponyms of tick include ticktock, tocktact.

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

tick (verb)	tictac (verb)
put a check mark on or near or next to
sew
make a clicking or ticking sound
make a sound like a clock or a timer