in the open

поза укриттям; просто неба; на відкритій місцевості (‘We’d hit them at night in the open as they tried to rush our positions’ - ‘Operation Mayhem’, Heaney with Lewis, 2014)

open burning and open detonation (OBOD) (= open-pit)

open country / open ground

break-open

open arrest

open attack

open barrel sight

open boat

open column

open emplacement

open fire

open flank

open formation

open hostilities

open order

open out

open position

open range

open route

Open Skies Treaty

open source intelligence (OSINT)

open submarine warfare

open time

open weapon emplacement

open wire

open work

open wound

open-source information

take to the open

networked open versatile architecture

open bolt

penetrating head injury / open head injury

open loop damping