Check (sometimes spelled as cheque - British English)

1. An order to a bank to pay money to a named person or entity. Each month we send in a check for our rent.
2. An inspection or examination. Check the brakes to see if they now work.
3. A mark (especially a checkmark √) used as an indicator. Put a check beside each item we need to buy.
4. A bill, particular in a restaurant. A the end of the meal they present you a check.
5. In chess, the situation where the king is threatened. The game is over when the king is in check and can't escape.
6. A lengthwise separation through the growth rings in wood. If there is a big check in the plank, reject it.