fill·er (f?l??r)n. One that fills, as:a. Something added to augment weight or size or fill space.b. A composition, especially a semisolid that hardens on drying, used to fill pores, cracks, or holes in wood, plaster, or other construction surfaces before finishing.c. Tobacco used to form the body of a cigar.d. A short item used to fill space in a publication.e. Something, such as a news item, public-service message, or music, used to fill time in a radio or television presentation.f. A sheaf of loose papers used to fill a notebook or binder.g. Architecture An element, such as a plate, used to fill the space between two supporting members.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.filler (?f?l?) n1. a person or thing that fills2. an object or substance used to add weight or size to something or to fill in a gap3. (Building) a paste, used for filling in cracks, holes, etc, in a surface before painting4. (Building) architect a small joist inserted between and supported by two beams5. a. the inner portion of a cigarb. the cut tobacco for making cigarettes6. (Journalism & Publishing) journalism articles, photographs, etc, to fill space between more important articles in the layout of a newspaper or magazine7. (Theatre) informal something, such as a musical selection, to fill time in a broadcast or stage presentation8. (Broadcasting) a small radio or television transmitter used to fill a gap in coverageCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014fill?er (?f?l ?r) n. 1. a person or thing that fills. 2. a thing or substance used to fill a gap, cavity, or the like. 3. a substance used to fill cracks, pores, etc., in a surface before painting or varnishing. 4. a substance used to give solidity, bulk, etc., as sizing. 5. journalistic material of secondary importance used to fill out a column or page. 6. cotton, down, or other material used to stuff or pad an object. 7. a plate inserted between two parallel structural members to connect them. 8. the tobacco forming the body of a cigar. [1490?1500] fil?lér or fil?ler (?fi l??r, ?f?l ??r) n., pl. -lér. a monetary unit of Hungary, equal to 1/100 of the forint. [1900?05;