filler
noun/ˈfɪlə(r)/
/ˈfɪlər/
- [uncountable, countable] a substance used to fill holes, especially in walls before painting them
- [countable] (informal) something that is not important but is used to complete something else because nothing better is available
- The song was originally a filler on their first album.
- [uncountable, countable] a soft substance that is put into somebody's skin, especially their face, to change their appearance
- Some doctors use lip fillers illegally on under-18s.
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filler