n.
1.a metallic tapping sound
2.any of two families of small parasitic arachnids with barbed proboscis
3.a mark indicating that something has been noted or completed etc.
4.a light mattress tick v.
1.make a clicking or ticking sound
2.make a sound like a clock or a timer
3.sew
4.put a check mark on or next to
Idiom of the Day
use (someone or something) as an excuse
to blame someone or something for something
My friend used his busy schedule as an excuse not to help us.