a mark (✓) used to indicate that an item in a list or text is correct or has been chosen, checked, or dealt with

a regular short, sharp sound, especially that made by a clock or watch

the comforting tick of the grandfather clock

the smallest recognized amount by which a price of a security or future may fluctuate

mark (an item) with a tick or select (a box) on a form, questionnaire, etc. to indicate that something has been chosen, checked, approved, or dealt with

just tick the appropriate box below

(of a clock or other mechanical device) make regular short, sharp sounds, typically one for every second of time that passes

I could hear the clock ticking

a parasitic arachnid that attaches itself to the skin of a terrestrial vertebrate from which it sucks blood, leaving the host when sated. Some species transmit diseases, including tularaemia and Lyme disease

a worthless or contemptible person

he was shown up in court for the little tick that he was

credit

the printer agreed to send the brochures out on tick

Gossett won't give tick to me, not beyond a penny

a fabric case stuffed with feathers or other material to form a mattress or pillow