fillers

Words or sounds used to fill pauses in speech, such as 'um' or 'like'.

"His speech was full of 'ums' and other fillers."

Substances or materials used to fill gaps, holes, or add volume.

"She used wall fillers to repair the cracks."

Injections, often hyaluronic acid, used to smooth wrinkles or add facial volume.

"She had dermal fillers to plump her lips."