1. A topic or matter that is easily understood, unambiguous, and well-defined
The teacher explained the lesson with a clear subject so all students could understand.
A professora explicou a aula com um assunto claro para que todos os alunos pudessem entender.
2. In linguistics, the grammatical subject of a sentence that is explicitly stated and easy to identify
In the sentence 'The dog runs', 'the dog' is a clear subject.
Na frase 'O cachorro corre', 'o cachorro' é um sujeito claro.
3. A topic or issue that is transparent and leaves no doubt about its meaning or intent
The contract's clear subject was the purchase of real estate.
O assunto claro do contrato foi a compra de imóveis.