Meaning of semaphore flag | Babel Free
Definitions
A flag used in semaphore. At sea, the flags are colored red and yellow (the Oscar flags), while on land, they are white and blue (the Papa flags).
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.