IPA: //ˈslaɪsər//
KK: /ˈslaɪsər/
A tool or device used to cut something into thin pieces.
The chef used a slicer to prepare the vegetables for the salad.
Slicer → It is formed from "slice" (from Old French *slicer*, meaning to cut) and "-er" (meaning a person who). A slicer is a person or tool that cuts something into slices.
Think of someone who 'cuts' ('slicer') things into pieces — that's what a slicer does.