Definition of quick

• any area of the body that is highly sensitive to pain (as the flesh underneath the skin or a fingernail or toenail)
• with little or no delay; "the rescue squad arrived promptly"; "come here, quick!"
• accomplished rapidly and without delay; "was quick to make friends"; "his quick reaction prevented an accident"; "hoped for a speedy resolution of the problem"; "a speedy recovery"; "he has a right to a speedy trial"