teddy

As a noun rooster

is a male of any species of gallinaceous bird typically refers to the domestic chicken,.

As a proper noun teddy is

a diminutive of the male given names edward and theodore.

As nouns the difference between alan and teddy

is that alan is a wolfhound while teddy is abbreviation of lang=en.

As proper nouns the difference between alan and teddy

is that alan is a given name derived from Celtic while Teddy is a diminutive of the male given names Edward and Theodore.