fill·ing (f?l??ng)n.1. An act or instance of filling.2. Something used to fill a space, cavity, or container: a gold filling in a tooth.3. An edible mixture used to fill pastries, sandwiches, or cakes. See Note at frosting.4. The horizontal threads that cross the warp in weaving; weft.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.filling (?f?l??) n1. the substance or thing used to fill a space or container: pie filling. 2. (Dentistry) dentistry a. any of various substances (metal, plastic, etc) for inserting into the prepared cavity of a toothb. the cavity of a tooth so filled3. (Textiles) textiles another term for weftadj(of food or a meal) substantial and satisfyingCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014fill?ing (?f?l ??) n. 1. an act or instance of filling. 2. something that is put in as a filler. 3. a substance such as cement, amalgam, gold, or the like, used to fill a cavity caused by decay in a tooth. 4. Also called weft , woof. yarn carried by the shuttle and interlacing at right angles with the warp in woven cloth. [1350?1400] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.