Oral usually refers to speech, rather than writing, or to the mouth. You often see it in phrases like oral exam, oral report, or oral health. For example, She gave an oral report in class.
Verbal means expressed in words. That can include spoken language, but it can also refer more broadly to language itself. In careful usage, verbal is not just a fancy way to say spoken. For example, We reached a verbal agreement by email and phone. The key idea is that the agreement was made with words.
A simple way to remember the difference is this:
- Use oral when you mean spoken, not written, or when something relates to the mouth.
- Use verbal when you mean in words.
That is why an oral presentation is spoken aloud, while a verbal statement may be spoken or written. In everyday conversation, many people use verbal to mean spoken, but in precise writing, the distinction is useful and clearer.