Quick answer
Cavaleiro rides horses. Cavalheiro behaves politely.
A reliable test is to identify the job of the word before translating from English.
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What each word does
cavaleiro
horseman or rider
Use cavaleiro for someone who rides a horse, or a knight in older contexts.
cavalheiro
gentleman
Use cavalheiro for a polite or courteous man.
How to choose
- cavaleiro: Choose cavaleiro if the sentence points to someone who rides a horse, or a knight in older contexts.
- cavalheiro: Choose cavalheiro if the sentence points to a polite or courteous man.
Examples
O cavaleiro atravessou o campo.
The rider crossed the field.
Ele foi muito cavalheiro.
He was very gentlemanly.
Common trap
The lh changes the word from rider to gentleman.
Practice it in context
Pick one sentence from your real life and write it twice: once with cavaleiro, then once with cavalheiro. If both versions feel possible, name the meaning shift.
Learn Brazilian Portuguese step by step
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