baseball cap
US /ˈbeɪs.bɔːl ˌkæp/
UK /ˈbeɪs.bɔːl ˌkæp/

1.
berretto da baseball
a cap with a stiff peak projecting forward, of the kind worn by baseball players
:
•
He wore a baseball cap backward.
Indossava un berretto da baseball all'indietro.
•
She bought a new baseball cap at the game.
Ha comprato un nuovo berretto da baseball alla partita.