Questions & Answers about A realidade parece diferente.
Because realidade is a feminine singular noun, so the definite article is a.
Also, Portuguese often uses the definite article with abstract nouns more naturally than English does. So A realidade is a very normal way to say reality in a general sense.
- a realidade = the reality / reality
You usually learn the gender together with the noun: a realidade.
A useful pattern is that many nouns ending in -dade are feminine in Portuguese:
- a cidade
- a liberdade
- a verdade
- a realidade
So realidade takes feminine words with it, such as a.