What is the meaning of Buzzard?

Any of several Old World birds of prey of the genus Buteo with broad wings and a broad tail.

Any scavenging bird, such as the American black vulture (Coragyps atratus) or the turkey vulture (Cathartes aura).

In North America, a curmudgeonly or cantankerous man; an old person; a mean, greedy person.

A blockhead; a dunce.

Synonym of double bogey

A fighter plane.

The insignia of a colonel, or a petty officer within the navy.

A military discharge (due to the military discharge certificate).

Source: wiktionary.org