tick vs ticker

tick and ticker both are nouns.

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

tick (noun)	ticker (noun)
any of two families of small parasitic arachnids with barbed proboscis; feed on blood of warm-blooded animals	a character printer that automatically prints stock quotations on ticker tape
a light mattress	a small portable timepiece
a mark indicating that something has been noted or completed etc.	the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body
a metallic tapping sound

tick (verb)	ticker (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