› [I or T] to make certain that something or someone is correct, safe, or suitable, for example by examining it or them, or by asking someone: When the shipment arrived, she checked to make sure nothing was broken. A security officer checked our bags at the entrance to the building. I'd like to check my bank balance, please.check on sth The supervisor will check on your progress next week.check (sth) for sth Always check your reports for spelling errors before you hand them in.check (sth) with sb Please could you check the figures with the sales manager?check that Check that you have all the necessary documentation before you travel. → Compare double-check › [T] to prevent something from increasing or continuing: Our first priority is to control public spending and check inflation. We tried to check the spread of the rumour that the company was being sold. › [T] to leave something with someone at a particular place, so that they can take care of it for a short time, or so it can be put on a plane or train: Please check your coats at the coatroom prior to the meeting. He checked his baggage as soon as he got to the airport. These articles may only be carried in checked baggage. › [T] to make a mark next to an item on a list, or to click on a checkbox on a computer screen in order to make a choice: Please check the box above to agree to our terms and conditions. → See also tick noun › [I] if information checks, it makes it likely that other information is true: check with sth Her statement checks with most of the eye-witness reports.