Cão and cachorro is dog.

Cachorrinho and filhote de cachorro is puppy. : )

Cachorro can also mean "Hot Dog" (the snack) in (European) Portuguese.

check this out http://duolingo.com/#/comment/69815

this is the case indeed (I am from Portugal as well), however this is brazilian portuguese, and therefore, cachorro is used for Cão. In portugal, Cão is used every time and cachorro only if it is a puppy. Cachorrinho if it's a small puppy, hence the diminutive 'inho'

That may be the case in Portugal. =)

In Brazil, the word "Cachorro" means both that cute puppy and big dog. But in Portugal, it means only one thing "puppy". So Portuguese people use the word "cão" when they indicate a big dog.

hum...more or less. i think "casho-ho" is better.

Like the letter H in English.

Cachorro quente.

Cachorro Quente