під нульовим кутом (фронт хвилі паралельний поверхні)
angle of incidence (optics)
angle of incidence
zero-zero landing
zero-zero weather
incidence of hot spots
incidence curve
zero degree angle
zero-lift angle
blind angle / dead angle
battlesight zero (BZO)
foot march under packs
ground zero (GZ)
hand-held under-barrel grenade launcher
restricted area (under military jurisdiction)
surveillance, under surveillance
under armor auxiliary power unit (UAAPU)
under arms
under barrel grenade launcher (UBGL)
under canvas
under command of
under cover of
under fire
under hatches
Under Secretary of Defense (USD)
Under Secretary of Defense for Acquisition, Technology, and Logistics (USD AT&L)
Under Secretary of Defense for Intelligence USD(I)
under-strength unit
under-vehicle improvised explosive device (UVIED)
vision nil (zero)
zero elevation
zero in on
zero shot