Tick :  (noun)
1: a metallic tapping sound; "he counted the ticks of the clock" [syn: ticking]
2: any of two families of small parasitic arachnids with barbed proboscis; feed on blood of warm-blooded animals
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" [syn: check mark, check]
4: a light mattress
Tick : (verb)
1: make a clicking or ticking sound; "The clock ticked away" ... ( more )

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act, arachnid, arthropod, bank credit, be effective, be in action, beat, bedbug, beetle, birthmark, blaze, blaze a trail, blemish, bloodsucker, blotch, book credit, borrowing power, brand, breath, bug, bump, cash credit, caste mark, caterpillar, centipede, chalk, chalk up, check, check off, checkmark, chilopod, chink, cicatrix, cicatrize, click, clicking, clink, clop, clump, clunk, commercial credit, consumer credit, coup, crack, credit, credit insurance, credit rating, credit union, crump, cut, daddy longlegs, dapple, dash, define, delimit, demarcate, diplopod, discolor, discoloration, dot, drum, dull thud, earmark, engrave, engraving, flash, fleck, flick, flump, fly, freckle, function, gash, go, go pitapat, graving, hack, half a jiffy, half a mo, half a second, half a shake, harvestman, hatch, have effect, have free play, have play, hexapod, hire purchase plan, impress, imprint, insect, installment credit, installment plan, instant, investment credit, jiff, jiffy, jot, larva, leech, lentigo, line, line of credit, macula, maggot, make a mark, mark, mark off, mark out, marking, microsecond, militate, millepede, millipede, millisecond, minute, mite, mole, moment, mosquito, mottle, never-never, nevus, nick, notch, nymph, operate, pad, palpitate, pant, parasite, pat, patch, patter, pencil, pepper, percolate, perform, perk, pitapat, pitter-patter, play, plump, plunk, point, polka dot, pop, prick, print, pulsate, pulse, punch, punctuate, puncture, rap, rating, riddle, run, scar, scarification, scarify, score, scorpion, scotch, scratch, scratching, seal, seam, sec, second, shake, speck, speckle, spider, splash, split second, splotch, spot, stain, stamp, stigma, stigmatize, strawberry mark, streak, striate, stripe, stroke, take effect, tap, tarantula, tattoo, tattoo mark, tax credit, throb, thud, thump, tick off, ticking, ticktack, ticktick, ticktock, tinkle, tittle, trace, trice, trust, tunk, twink, twinkle, twinkling, twitch, two shakes, underline, underscore, watermark, wink, wood tick, work,