granddad

As nouns the difference between granddad and grampy

is that granddad is grandfather while grampy is (informal|childish) grandfather.

As a noun granddad

is grandfather.

As a proper noun poppy is

, a flower name used since the end of the 19th century.

As nouns the difference between granddad and pawpaw

is that granddad is grandfather while pawpaw is any of several types of trees having edible fruit: or pawpaw can be .

As nouns the difference between granddad and pop

is that granddad is grandfather while pop is a social club and debating society at or pop can be (also in plural) a popular classical music concert.

As nouns the difference between taxonomy and granddad

is that taxonomy is the science or the technique used to make a classification while granddad is grandfather.