Meaning of alert five | Babel Free
Definitions
On an aircraft carrier, the state where fighters and crew are on guard, standing by in the aircraft, strapped in and ready to be launched in five minutes or less.
slang, uncountable
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.