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light day

Noun CEFR B2

Definitions

A unit of length equal to the distance light travels in one day; about 170 astronomical units

Equivalents

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

light decade light due light echo light elf light engine light engineering

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