<p><strong>Verb:</strong></p><ul><li>To stop or arrest the motion of suddenly or forcibly.</li><li>To restrain; hold in restraint or control.</li><li>To cause a reduction, such as in rate or intensity; diminish.</li><li>To investigate or verify as to correctness.</li><li>To inspect or test the performance, condition, safety, etc., of something.</li><li>To mark something so as to indicate examination, correctness, preference, etc.</li><li>To leave in temporary custody.</li><li>To send baggage on a passenger's ticket for pickup at the destination.</li><li>To obstruct or impede the movement or progress of an opponent.</li><li>To make a sudden stop; pause.</li><li>To prove to be right; correspond accurately.</li><li>To make an inquiry, investigation, etc., such as for verification.</li><li>To crack or split, usually in small checks.</li></ul><p><strong>Noun:</strong></p><ul><li>A written order directing a bank to pay money.</li><li>A slip or ticket showing the amount owed.</li><li>A ticket or token that identifies an article left in temporary custody.</li><li>A criterion, standard, or means to insure against error, fraud, etc.</li><li>An inquiry, search, or examination.</li><li>A mark indicating that something has been considered, acted upon, or approved.</li><li>A person or thing that stops, limits, slows, or restrains.</li><li>A sudden arrest or stoppage.</li><li>A control, test, or inspection that ascertains performance or prevents error.</li><li>A pattern formed of squares.</li><li>The exposure of the king to direct attack in chess.</li></ul><p><strong>Adjective:</strong></p><ul><li>Serving to check, control, verify, etc.</li><li>Ornamented with a pattern of squares; checkered.</li></ul><p><strong>Interjection:</strong></p><ul><li>Used as a call to warn one's opponent in chess.</li></ul>