Learn how to say Filler correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word filler:
1 [usually in combination] a thing put in a space or container to fill it:
these plants are attractive gap-fillers or ground cover
[mass noun] a substance used for filling cracks or holes in a surface, especially before painting it:
[mass noun] material used to fill a cavity or increase bulk:
an item serving only to fill space or time in a newspaper, broadcast, or recording.
a word or sound filling a pause in an utterance or conversation (e.g. er, well, you know).
a linguistic unit that fills a particular slot in syntactic structure.
2 [in combination] a person or thing that fills a space or container:
3 [mass noun] US the tobacco blend used in a cigar.