"O casaco é comprido."

Translation: The coat is long.

[Meromorphic]

What's the difference between comprido and longo?

[Paulenrique]

Where i live we use them interchangeably. Longo is slightly more formal. So, its nicer to say "para essa ocasião é necessário vestido longo"

[keytaro]

I said "the coat is lengthy". Lengthy is one of the three listed ways to translate comprido. My comment was marked wrong. Porquê duo linguo?

[deactivated user]

I think "lengthy" is for describing things that happen over a period of time:
A lengthy speech, maybe, or a bus ride, a film...
Longo describes objects better.
Am I on the right track?

[MartBaker]

in this phrase, O Casaco can it not mean His coat?