Meaning of Sloan letter | Babel Free
Definitions
Any of a set of standard optotypes resembling the letters C, D, H, K, N, O, R, S, V and Z.
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.