IPA: /ˌoʊvərˈhɪr/
KK: /oʊvərˈhɪr/
To hear something that someone else is saying without them knowing you are listening.
I accidentally overheard their conversation about the surprise party.
Past: overheard
Past Participle: overheard
Overhear → It is formed from "over-" (meaning above or beyond) and "hear" (from Old English "hyran", meaning to perceive sound). The word "overhear" means to hear something that is not intended for one's ears, often by being in a position above or beyond the speaker's intention.
Think of being 'above' ('over-') someone and 'perceiving sound' ('hear') that you weren't meant to hear — that's how you remember that 'overhear' means to catch a conversation not directed at you.
No commonly confused words.