filler

Etymology

fill + -er

noun

1. One who fills.
2. Something added to fill a space or add weight or size.
   I recommend this album in the face of the fact that five of the eleven songs are the purest filler, dull instrumentals with a harmonica rifling over an indifferent rhythm section. The rest is magnificent[…] 1977, Stereo Review, volume 38, page 70
3. Any semisolid substance used to fill gaps, cracks or pores.
4. A relatively inert ingredient added to modify physical characteristics.
   The word "filler" is taboo in the excipient world. 2014 April, Ken Seufert, “The New Dawn of Pharmaceutical Manufacturing: Innovative Solutions for Unprecedented Challenges”, in American Pharmaceutical Review, 17(3):9
5. A short article in a newspaper or magazine.
6. A short piece of music or an announcement between radio or TV programmes.
7. Any spoken sound or word used to fill gaps in speech; filled pause.
8. Cut tobacco used to make up the body of a cigar.
9. (programming) In COBOL, the description of an unnamed part of a record that contains no data relevant to a given context (normally capitalised when in a data division).
10. (horticulture) A plant that lacks a distinctive shape and can fill inconvenient spaces around other plants in pots or gardens.
11. (forestry, usually in the plural) Any standing tree or standard higher than the surrounding coppice in the form of forest known as "coppice under standards".
12. (television, music) material of lower cost or quality that is used to fill a certain television time slot or physical medium, such as a music album