IPA: /ˈɪərbʌd/
KK: /ˈɪrˌbʌd/
A small device that fits into the ear and allows you to listen to music or sounds from a portable device.
I always use my earbuds when I go for a run.
Earbud → The word is formed from "ear" (from Old English "eare", meaning the organ of hearing) and "bud" (from Middle English "budde", meaning a small, rounded part or a young shoot). An earbud is a small device designed to fit in the ear for listening to audio.
Think of the 'ear' as the part of your body that hears, and 'bud' as a small part that fits there — that's why an earbud is a small device for your ear.
No commonly confused words.