手早い答え
deixar は日常的な「させる・残す」で意味が広く、permitir は許可を直接表します。
確実な見分け方は、英語から訳す前に、その単語の働きを見きわめることです。
それぞれの単語の働き
deixar
to let or leave
Use deixar for everyday permission, noninterference, or leaving something in a state or place.
permitir
to permit or allow
Use permitir for explicit authorization, especially in neutral or formal language.
選び方
- deixar: Choose deixar if the sentence points to everyday permission, noninterference, or leaving something in a state or place.
- permitir: Choose permitir if the sentence points to explicit authorization, especially in neutral or formal language.
例文
Meus pais deixaram eu viajar.
My parents let me travel.
O regulamento não permite animais.
The rules do not allow animals.
よくある落とし穴
Because deixar is broader, deixei a porta aberta means “I left the door open,” not necessarily “I allowed the door to open.”
文脈の中で練習する
自分の実生活から文を一つ選び、二回書いてみましょう。一度はdeixarで、もう一度はpermitirで。どちらも成り立ちそうなら、意味の違いを言葉にしてみましょう。