He got a nick on his finger while chopping vegetables.
A prison or police station. He spent the night in the nick after being arrested for disorderly conduct.
Condition or state, especially of health or appearance (chiefly British, usually in the phrase 'in good/bad nick'). Despite its age, the bicycle is still in good nick.
The precise or critical moment, especially in the fixed phrase “in the nick of time.” She arrived in the nick of time to catch the last bus.