Unicorn (noun)

1. A mythical horse-like creature with a single, spiraled horn on its forehead.
2. A person or thing that is unique, rare or exceptional.

Origin:

The word "unicorn" is derived from the latin word "unicornis" which means "single horned". the word was used to describe an animal that has a single, large and spiraled horn on its forehead.

Examples:

1. The unicorn is a symbol of purity and grace.
2. The company was able to secure funding from a unicorn investor.
3. She was a unicorn among her peers, excelling in both academics and sports.
4. The painting depicts a unicorn with a golden mane.
5. He is a unicorn in his field, with a combination of skills that are hard to find.