A definition may remain opaque to someone.Logical formLearned from2 sentences. A glass may go opaque.Logical formLearned from2 sentences. (Data formats) can be opaque.Logical formLearned from2 sentences. Units can be opaque.Logical formLearned from2 sentences. Ceramics can be opaque.Logical formLearned from2 sentences. Shadows can be opaque.Logical formLearned from2 sentences. Smoke can be opaque.Logical formLearned from2 sentences. Diamonds can be opaque.Logical formLearned from2 sentences. A white tin can be opaque.Logical formLearned from2 sentences. Rice can be opaque.Logical formLearned from2 sentences. A market can be opaque.Logical formLearned from2 sentences. Motivations can be opaque.Logical formLearned from2 sentences. A technology can be opaque.Logical formLearned from2 sentences. A president can be opaque.Logical formLearned from2 sentences. Heat to medium can be opaque.Logical formLearned from2 sentences.