Turn this distinction into automatic recall
Falando teaches Brazilian Portuguese through grammar, vocabulary, audio, examples, and spaced review, so confusing pairs stop feeling like guesses.
Quick answer
Sozinho clearly means alone or unaided. Só can mean alone, but it can also mean only.
A reliable test is to identify the job of the word before translating from English.
What each word does
sozinho
alone or by oneself
Use sozinho for without company or without help, often with an emotional or emphatic nuance.
só
only or alone
Use só for restriction, or being without company in a shorter and sometimes ambiguous form.
How to choose
- sozinho: Choose sozinho if the sentence points to without company or without help, often with an emotional or emphatic nuance.
- só: Choose só if the sentence points to restriction, or being without company in a shorter and sometimes ambiguous form.
Examples
Ela viajou sozinha.
She traveled alone.
Só ela sabia a resposta.
Only she knew the answer.
Common trap
Position changes the reading: ela só viajou usually means she only traveled; ela viajou só usually means she traveled alone.
Practice it in context
Pick one sentence from your real life and write it twice: once with sozinho, then once with só. If both versions feel possible, name the meaning shift.
Turn this distinction into automatic recall
Falando teaches Brazilian Portuguese through grammar, vocabulary, audio, examples, and spaced review, so confusing pairs stop feeling like guesses.