IPA: //ˈdɪʃˌwɔːʃər//
KK: /ˈdɪʃˌwɔʃər/
A machine that cleans dirty dishes automatically by spraying them with water and detergent.
I put the dirty plates in the dishwasher after dinner.
Dishwasher → It is formed from "dish" (from Old English "disc", meaning a plate or bowl) and "washer" (from the verb "wash", meaning to clean with water). The word "dishwasher" refers to a machine that cleans dishes or plates.
Think of a machine that 'cleans' ('wash') 'dishes' — that's what a dishwasher does.