Definition of garrison cap in English:

garrison cap

noun

US
  • A peakless cap, especially one worn as part of a military uniform.

    • ‘Inside the edifice and its newer extensions, VFW-ers, some in their garrison caps and others in Stetsons, mixed with the pierced-eyebrow crowd who'd come to see the likes of Mary Karr, author of The Liar's Club: A Memoir.’
    • ‘Enlisted men wore summer cotton khaki or a wool winter garrison cap with branch-colored braid.’
    • ‘After the service, Wing Commander Rowley - who was in charge of the recovery effort - presented an Australian flag and garrison cap to a family representative of each Air Force victim.’
    • ‘Dozens of veterans, many wearing garrison caps embossed with their ships' names, attended ceremonies and speeches on Oahu this week, honouring them and their fallen friends.’