sapphire

1. N-VAR A sapphire is a precious stone which is blue in colour. 藍(lán)寶石

...a sapphire engagement ring. …一枚藍(lán)寶石訂婚戒指。

2. COLOR Something that is sapphire is bright blue in colour. 天藍(lán)色的[文學(xué)性]

...white snow and sapphire skies. …白雪和藍(lán)天。