ˈfɪlɪŋ pɪk the act of filling something (dentistry) a dental appliance consisting of any of various substances (as metal or plastic) inserted into a prepared cavity in a tooth when he yawned I could see the gold fillings in his teeth an informal British term for ‘filling’ is ‘stopping’ the yarn woven across the warp yarn in weaving a food mixture used to fill pastry or sandwiches etc. flow into something (as a container) any material that fills a space or container there was not enough fill for the trench