tick

v. make a ticking sound (like a clock); mark, indicate, check off (as a list), put a check mark on; sew (a mattress); go on credit

n. ticking sound; credit; small parasitic bloodsucking arachnid which can sometimes be the carrier of infectious diseases; light mattress; cover of a mattress or pillow; mark that indicates that something has been noted or done

Tick is the common name for the small arachnids that, along with other mites, constitute the order Acarina. Ticks are ectoparasites (external parasites), living by hematophagy on the blood of mammals, birds, and occasionally reptiles and amphibians. Ticks are important vectors of a number of diseases, including Lyme disease.
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Noun
1. a metallic tapping sound; "he counted the ticks of the clock"
(synonym) ticking
(hypernym) sound
(hyponym) ticktock, tocktact, tictac
(derivation) click
2. any of two families of small parasitic arachnids with barbed proboscis; feed on blood of warm-blooded animals
(hypernym) acarine
(hyponym) hard tick, ixodid
(member-holonym) Acarina, order Acarina
(derivation) ticktock, ticktack, beat
3. 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"
(synonym) check mark, check
(hypernym) mark
4. a light mattress
(hypernym) mattress
(derivation) retick
Verb
1. make a clicking or ticking sound; "The clock ticked away"
(synonym) click
(hypernym) sound, go
(derivation) ticking
2. make a sound like a clock or a timer; "the clocks were ticking"; "the grandfather clock beat midnight"
(synonym) ticktock, ticktack, beat
(hypernym) sound, go
3. sew; "tick a mattress"
(synonym) retick
(hypernym) sew, run up, sew together, stitch
4. put a check mark on or next to; "Please check each name on the list"; "tick off the items"
(synonym) check, check off, mark, mark off, tick off
(hypernym) verify
(hyponym) receipt
(verb-group) check, check up on, look into, check out, suss out, check over, go over, check into

n. tic, crick, kink

v. tick, make a ticking sound

(v. t.)
To check off by means of a tick or any small mark; to score.
  

(v. i.)
To strike gently; to pat.
  

(v. i.)
To make a small or repeating noise by beating or otherwise, as a watch does; to beat.
  

(v. i.)
To go on trust, or credit.
  

(v. i.)
To give tick; to trust.
  

(n.)
Ticking. See Ticking, n.
  

(n.)
The whinchat; -- so called from its note.
  

(n.)
The cover, or case, of a bed, mattress, etc., which contains the straw, feathers, hair, or other filling.
  

(n.)
Credit; trust; as, to buy on, or upon, tick.
  

(n.)
Any small mark intended to direct attention to something, or to serve as a check.
  

(n.)
Any one of several species of dipterous insects having a flattened and usually wingless body, as the bird ticks (see under Bird) and sheep tick (see under Sheep).
  

(n.)
Any one of numerous species of large parasitic mites which attach themselves to, and suck the blood of, cattle, dogs, and many other animals. When filled with blood they become ovate, much swollen, and usually livid red in color. Some of the species often attach themselves to the human body. The young are active and have at first but six legs.
  

(n.)
A quick, audible beat, as of a clock.