Relative pronouns of motion (aonde)

The Relative Pronoun "Aonde"

In Portuguese, the relative pronoun aonde is used to mean "where" or "where to" when referring to a destination. It is simply a combination of the preposition a (to) and the word onde (where).

We do not know the place where we are going in this spontaneous adventure.
Não sabemos o lugar aonde vamos nesta aventura espontânea.

You must use aonde instead of just onde whenever the verb implies movement or direction toward a place, such as ir (to go), viajar (to travel), chegar (to arrive), or levar (to take/lead).

I do not know the city where this motorway takes you!
Não conheço a cidade aonde esta autoestrada te leva!

"Onde" vs. "Aonde"

The distinction between these two words is strict in Portuguese. Use onde for a fixed location (where you are) and aonde for motion (where you are going).

The place where we are is beautiful, but the city where we travel to is unknown.
O lugar onde estamos é lindo, mas a cidade aonde viajamos é desconhecida.

"Aonde" Without a Noun

Just like in English, you do not always need to state the specific place you are referring to. Aonde can be used on its own without a noun, and it frequently appears in questions to ask "Where to?".

We do not know the route nor where we are going.
Não sabemos a rota nem aonde vamos.
Where does this mysterious route go?
Aonde vai esta rota misteriosa?