The difference between Fairy and Sprite

When used as nouns, fairy means the realm of faerie, whereas sprite means a spirit.

Fairy is also adjective with the meaning: like a fairy.

check bellow for the other definitions of Fairy and Sprite

Fairy as a noun (uncountable, obsolete):

The realm of faerie; enchantment, illusion.
Fairy as a noun:

A mythical being with magical powers, known in many sizes and descriptions, although often depicted in modern illustrations only as a small sprite with gauze-like wings, and revered in some modern forms of paganism.
Fairy as a noun:

An enchantress, or creature of overpowering charm.
Fairy as a noun (Northern England, US, derogatory, colloquial):

A male homosexual, especially one who is effeminate.
Fairy as a noun:

A member of two species of hummingbird in the genus Heliothryx.

Sprite as a noun (mythology):

A spirit; a soul; a shade
Sprite as a noun:

an apparition; ghost
Sprite as a noun (mythology):

An elf; a fairy; a goblin.
Sprite as a noun:

The green woodpecker, or yaffle.
Sprite as a noun (computer graphics):

A two-dimensional image or animation that is integrated into a larger scene.
Sprite as a noun:

An electrical discharge that occurs high above the cumulonimbus cloud of an active thunderstorm.
Sprite as a noun:

A spayed female ferret.