8a part of a piano which catches the hammer and prevents it retouching the strings.
9a crack or flaw in timber.
1examine (something) in order to determine its accuracy, quality, or condition, or to detect the presence of something:customs officers have the right to check all luggage [no object]:a simple blood test to check for anaemia
verify or establish to one’s satisfaction:phone us to check the availability of your chosen holiday [with clause]:she glanced over her shoulder to check that the door was shut
(check something against) verify the accuracy of something by comparing it with (something else):keep your receipt to check against your statement
2stop or slow the progress of (something, typically something undesirable):efforts were made to check the disease
curb or control (one’s feelings or reaction):he learned to check his excitement
Ice Hockey hamper or neutralize (an opponent) with one’s body or stick.
[no object] (check against) provide a means of preventing:processes to check against deterioration in the quality of the data held
3 [with object] Chess move a piece or pawn to a square where it attacks (the opposing king):he moves his knight to check my king again
4 [no object] (in poker) choose not to make a bet when called upon, allowing another player to do so instead.
5 [no object] (of a hound) pause to make sure of or regain a scent.
(of a trained hawk) abandon the intended quarry and fly after other prey.
checks and balances
counterbalancing influences by which an organization or system is regulated, typically those ensuring that power in political institutions is not concentrated in the hands of particular individuals or groups.
1under control:a way of keeping inflation in check
2 Chess (of a king) directly attacked by an opponent’s piece or pawn; (of a player) having the king in this position.
keep a check on
monitor:keep a regular check on your score
check in (or check someone in)
arrive and register at a hotel or airport:you must check in at least one hour before take-offthey check in the passengers
check something in
have one’s baggage weighed and put aside for consignment to the hold of an aircraft on which one is booked to travel.
register and leave baggage in a left-luggage department:I checked in my suitcases at the left-luggage at Paddington
register one’s arrival at (a hotel):you’ll check into the luxurious Basle Hilton Hotel
check something off
North American tick or otherwise mark an item on a list to show that it has been dealt with:we make a careful list which we check off as we finish each job
1verify, ascertain, or monitor the state or condition of:the doctor had come to check on his patient