"ticks" in the noun sense
1. tick, ticking
a metallic tapping sound
"he counted the ticks of the clock"
any of two families of small parasitic arachnids with barbed proboscis feed on blood of warm-blooded animals
3. check mark, check, tick
a mark indicating that something has been noted or completed etc.
"as he called the role he put a check mark by each student's name"
a light mattress
"ticks" in the verb sense
1. click, tick
make a clicking or ticking sound
"The clock ticked away"
2. tick, ticktock, ticktack, beat
make a sound like a clock or a timer
"the clocks were ticking"
"the grandfather clock beat midnight"
3. tick, retick
"tick a mattress"
4. check, check off, mark, mark off, tick off, tick
put a check mark on or near or next to
"Please check each name on the list"
"tick off the items"
"mark off the units"
Source: WordNet® (An amazing lexical database of English)
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