noun: (dentistry) a dental appliance consisting of any of various substances (as metal or plastic) inserted into a prepared cavity in a tooth
Example:When he yawned I could see the gold fillings in his teeth.
noun: a food mixture used to fill pastry or sandwiches etc.
noun: flow into something (as a container)
noun: any material that fills a space or container
noun: the yarn woven across the warp yarn in weaving.