filler

UK: /ˈfɪlə/ US: /ˈfɪlɚ/ ,(fil′ər)

Inflections of 'filler' (n): npl: fillers
Inflections of 'fillér' (n): npl: fillér (Hungarian coin)

WordReference Random House Learner's Dictionary of American English © 2026

fill•er /ˈfɪlɚ/   n. 

1. [countable] a person or thing that fills.
2. Building [uncountable] a substance used to fill cracks.
3. Journalism [countable] journalistic material of secondary importance used to fill out a column or page.
4. Textiles [uncountable] cotton, down, or other material used to stuff or pad something.

WordReference Random House Unabridged Dictionary of American English © 2026

fill•er  (fil′ər), n. 

1. a person or thing that fills:
   a filler for pies; a filler of orders.
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 liquid, paste, or the like used to coat a surface or to give solidity, bulk, etc., to a substance, as paper or a chemical powder.
5. Journalism material, considered of secondary importance, used to fill out a column or page.
6. an implement used in filling, as a funnel.
7. Clothing cotton, down, or other material used to stuff or pad an object, as a quilt or cloth toy.
8. material placed between the insole and the exterior sole of a shoe.
9. Language Varieties, Linguistics [Ling.] (esp. in tagmemics) one of a class of items that can fit into a given slot in a construction.
10. Building a plate, slab, block, etc., inserted between two parallel members to connect them.
11. the tobacco forming the body of a cigar.
12. Metallurgy, Building metal in the form of a rod or wire, used in brazing, welding, and soldering.

• fill + -er¹ 1490–1500

fil•lér  (fē′lâr, fil′âr), n., pl. -lér. 

1. Currency an aluminum coin of Hungary, the 100th part of a forint.

Also, fil′ler. 

• Middle High German vierer type of coin, equivalent. to vier four + -er -er¹
• Hungarian
• 1900–05

Collins Concise English Dictionary © HarperCollins Publishers::

filler / ˈfɪlə/ noun

1. a person or thing that fills
2. an object or substance used to add weight or size to something or to fill in a gap
3. a paste, used for filling in cracks, holes, etc, in a surface before painting
4. a small joist inserted between and supported by two beams
5. the inner portion of a cigar
6. the cut tobacco for making cigarettes
7. articles, photographs, etc, to fill space between more important articles in the layout of a newspaper or magazine
8. something, such as a musical selection, to fill time in a broadcast or stage presentation
9. a small radio or television transmitter used to fill a gap in coverage