Meaning of ODN | Babel Free
Definitions
Initialism of ordnance datum Newlyn, used to judge the height above/below sea level in England, from the MSL (mean sea level) in Newlyn between 1915 and 1921.
UK, abbreviation, alt-of, initialism
CEFR level
A2
Elementary
This word is part of the CEFR A2 vocabulary — elementary level.
This word is part of the CEFR A2 vocabulary — elementary level.