IPA: /ˈwaɪpər/
KK: /ˈwaɪpər/
A tool or device used to clean or wipe a surface, often found on vehicles to clear rain or snow from the windshield.
I turned on the windshield wipers to see better during the rain.
Wiper → The word 'wiper' is derived from the verb 'wipe' (from Old English 'wīpan', meaning to move quickly or to wipe) combined with the agentive suffix '-er' (meaning a person or thing that performs an action). Thus, a wiper is a person or thing that wipes.
Think of someone or something that 'wipes' — the '-er' indicates that it performs the action of wiping.