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Meaning of blue gold | Babel Free

Noun CEFR B2

Definitions

An alloy of gold with gallium or indium, having a greyish or slightly blue colour.
uncountable
Fresh water, in situations where it is rare or difficult to obtain.
informal, uncountable

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

blue goose blue grama blue grass blue green blue ground beetle blue ground dove