- 1deafen somebody to make someone unable to hear the sounds around them because there is too much noise The noise of the siren was deafening her.
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- 2deafen somebody to make someone deaf
deafen
verbNAmE//ˈdɛfn//
[usually passive]Verb Forms present simple I / you / we / they deafen he / she / it deafens
past simple deafened
-ing form deafening
Check pronunciation: deafen