This is the 12385th most frequent Portuguese word.
single
The Portuguese word "single" (borrowed from English) means "unmarried" or "not in a relationship."
In this case, 'solteira' translates to 'single' in English, indicating the marital status of the woman.
Ela é uma mulher solteira muito bem-sucedida.
She is a very successful single woman.
Here, 'única' means 'single,' referring to not being able to hit even one note, emphasizing singular occurrence.
Ele não conseguiu acertar uma única nota na música.
He couldn't hit a single note in the song.
In this sentence, 'individual' corresponds to 'single,' describing a room for one person.