Leprechaun and Sprites

Leprechaun noun - An imaginary being usually having a small human form and magical powers.

Sprites and leprechaun are semantically related. In some cases you can replace term "Sprites" with "Leprechaun", this nouns are similar.

Sprites noun - Atmospheric electricity (lasting 10 msec) appearing as globular flashes of red (pink to blood-red) light rising to heights of 60 miles (sometimes seen together with elves).

Leprechaun and sprites are semantically related. You can use "Leprechaun" instead a noun "Sprites".