o ‧ ver ‧ hear /ˌəʊvəˈhɪə $ ˌoʊvərˈhɪr/ BrE AmE verb ( past tense and past participle overheard /-ˈhɜːd $ -ˈhɜːrd/) [transitive]
[ Word Family: adjective : ↑ unheard , ↑ unheard , of; verb : ↑ hear , ↑ overhear ; noun : ↑ hearing , ↑ hearer ]
to accidentally hear what other people are saying, when they do not know that you have heard:
I overheard part of their conversation.
overhear somebody saying something
She overheard the management discussing pay rises.
overhear somebody say (that)
We overheard the teacher say there would be a pop quiz today.
I couldn’t help overhearing your argument.
⇨ ↑ eavesdrop