The Atlantic puffin is one of the most commonly seen birds in the North Atlantic.

He was considered the wisest among the ignorant, like a bat in the land of the blind.

The Papua fire-eating bird, with its unique appearance, is a bird you won't forget once you see it.

We are aiming to kill two birds with one stone with this plan.

A binary operator is one of the basic concepts in algebra.

The Uniform Resource Locator indicates the address of a web page.

Before starting a new business, he said, 'Nothing ventured, nothing gained.'