(мор.) позивні, назва судна
tactical sign (tac-sign)
call sign (callsign)
collective call sign
net call sign
tactical call sign
circular call sign
address call sign
visual call sign
voice call sign
call sign (signal)
radio call sign
call up (call-up)
conventional sign
marking sign
mine sign
BIO sign
crossing sign
deviation sign
aerodrome identification sign
sign
challenging sign
gas warning sign
trail sign
warning sign
code sign
collective сall sign
recall sign
chemical contamination sign
hazard sign
cadence (call)
call for fire (CFF)
call-out procedure