In formal settings:
* Valid argument: A logical argument with sound reasoning and evidence.
* Valid contract: A legally binding agreement that meets all requirements.
* Valid passport: A passport that is genuine and allows travel.
In general use:
* Valid reason: A justifiable and acceptable explanation for something.
* Valid point: A relevant and well-supported statement.
* Valid opinion: An opinion based on facts and logic, not just personal bias.
In technical contexts:
* Valid input: Data that is formatted correctly and meets the system's requirements.
* Valid code: Code that compiles and runs without errors.
* Valid email address: An email address that exists and can receive messages.
It's important to remember that validity is often relative to a specific context or criteria. For example, a valid email address might not be valid for a specific website if it doesn't meet their requirements.
To understand "valid" in a particular situation, it's crucial to consider the context and what is being validated.