код сигналів сиреною; умовний сигнал сиреною
air raid siren / alarm
siren
authentication code
code number
code word
color-code band
fire code
geolocation code
honor code
map reference code
Morse code
Morse code character
pulse code
Uniform Code of Military Justice (UCMJ)
United States Code (USC)
US Code
brevity code
code description
confidential code message (CCM)
fault code description
code names dictionary
attack code
bombardment code
clock code
code named
code words
wing code
runway reference code
aerodrome reference code
reference code
synoptic code
task force on code sharing