Demonstratives, Relatives & Interrogatives
Portuguese demonstratives have a 3-way distance system English doesn't — near the speaker, near the listener, or far from both. Relatives mostly collapse into one word, "que". Interrogatives open questions.
Este é o meu celular.
This is my phone.
Esse livro é seu?
Is that book yours?
Aquele prédio é bonito.
That building over there is beautiful.
Isto / Isso / Aquilo — the neuter forms
Used when there's no specific noun in mind — a situation, an idea, or something you're pointing at without naming it.
Asking about something unclear
O que é isso?
What is that?
Agreeing with a statement
Isso é verdade.
That's true.
Introducing yourself (on the phone)
Alô, aqui é a Ana.
"Hello, this is Ana speaking."
Pointing at something distant/vague
O que é aquilo lá?
What is that thing over there?
"Esse" isn't always about physical distance
Brazilians often use esse/essa/isso for anything already mentioned in the conversation, even if it's not physically near the listener — it works more like English "that [we just talked about]" than a strict measurement of distance.