n.

1. 红宝石；红宝石制品[C]
   a ruby ring

   红宝石戒指

2. 红宝石色，暗红色[U]
3. 红葡萄酒[U]
4. （脸部的）红酒刺[C]

a.

1. 红宝石色的
   ruby wine

   深红色葡萄酒

vt.

1. 把……染成红宝石色；使带有红宝石色

n.

1. a precious stone consisting of corundum in colour varieties varying from deep crimson or purple to pale rose.
2. an intense deep red colour.
3. Printing  an old type size equal to 5¹⁄₂ points.