This is the 3315th most frequent Portuguese word.
estranho
"Strange" or "weird."
In this context, 'estranho' is used as an adjective to describe something unconventional or unusual.
Este lugar parece muito estranho.
This place seems very strange.
Here, 'estranho' describes an unusual and possibly unexpected noise.
Eu ouvi um barulho estranho vindo do quarto.
I heard a strange noise coming from the room.
In this sentence, 'estranho' is used to indicate that someone has unconventional or unique characteristics.