Questions & Answers about O cachorro está latindo.
O means the, so o cachorro means the dog.
In Portuguese, using the definite article is very common, often more common than in English.
So:
- o cachorro = the dog
- cachorro = dog / a dog / dogs depending on context
In this sentence, o cachorro refers to a specific dog.
Portuguese nouns have grammatical gender.
- o is the masculine singular definite article
- a is the feminine singular definite article
Cachorro is a masculine noun, so it takes o:
- o cachorro = the dog
- a cachorra = the female dog
Even when talking about animals, the grammatical gender of the noun matters.