to catch, to seize; to capture or snare (someone or something which would rather escape). / to catch, to seize; to unpleasantly discover unexpectedly; to unpleasantly surprise (someone doing something). / to catch, to seize; to make a grasping or snatching motion (at). / to catch, to seize; to grasp mentally: perceive and understand. / to receive; to take goods knowing them to be stolen. / to receive; to detect a signal from a transmitter. / to arrest, to hold, to detain, to apprehend. / to arrest, to hold, to detain, to apprehend.; to seize (someone) with the authority of the law; to take into legal custody.