What is the meaning of Sapphire?

A clear deep blue variety of corundum, valued as a precious stone.

A white, yellow, or purple variety of corundum, either clear or translucent.

A deep blue colour.

Azure, when blazoning by precious stones.

Any hummingbird in the genera Hylocharis and Chlorestes, as well as the rufous-throated sapphire, which is now in the genus Amazilia.

Any of the butterflies in the southern Asian lycaenid genus Heliophorus or the African lycaenid genus Iolaus.

of a deep blue colour.

pertaining to a 45th year

vocative singular of sapphīrus

Source: wiktionary.org