Definition of "ruby"
- noun
A clear, deep, red variety of corundum, valued as a precious stone.
A deep red colour.
Type having a height of 5.5 points.
A ruby hummer, a South American hummingbird, Clytolaema rubricauda.
A red bird-of-paradise, Paradisaea rubra.
A pronunciation guide written above or beside Chinese or Japanese characters.
- adjective
Of a deep red colour (having any of numerous bright colours reminiscent of the colour of blood or cherries or tomatoes).
- verb
To make red; to redden.
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