1.Definition: a light mattress

Category: Objects

2.Definition: a mark indicating that something has been noted or completed etc.

Related Noun(s):check

Category: General

3.Definition: a metallic tapping sound

"He counted the ticks of the clock"

Related Noun(s):ticking

Category: General

4.Definition: any of two families of small parasitic arachnids with barbed proboscis; feed on blood of warm-blooded animals

Category: Animals