examine (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

a simple blood test to check foranaemia

stop or slow the progress of (something, typically something undesirable)

efforts were made to check the disease

(of a passenger) consign (baggage) to the care of the transport provider with whom they are travelling

I checked my bag and got my boarding pass

mark or click on (a box) in order to select a particular option on a form, questionnaire, etc.

users who want privacy should check the box that prevents your files from being shared

move a piece or pawn to a square where it attacks (the opposing king)

he moves his knight to check my king again

(in poker) choose not to make a bet when called upon, allowing another player to do so instead

(of a hound) pause to make sure of or regain a scent

an examination to test or ascertain accuracy, quality, or satisfactory condition

a campaign calling for regular checks on gas appliances

a health check

a stopping or slowing of progress

there was no check to the expansion of the market

a move by which a piece or pawn directly attacks the opponent's king and by which the king may be checkmated

a token of identification for left luggage

a counter used as a stake in a gambling game

a part of a piano which catches the hammer and prevents it retouching the strings

a crack or flaw in timber

expressing assent or agreement

used by a chess player to announce that the opponent's king has been placed in check

a pattern of small squares

a fine black-and-white check

having a checked pattern

a blue check T-shirt

an order to a bank to pay a stated sum from the drawer's account, written on a specially printed form

they presented him with a cheque for £4,000

fees are payable by cheque or postal order