Homonym: Invalid (Unacceptable)
The term "invalid" refers to something that is not valid or acceptable. This can apply to various contexts, such as documents, arguments, or data. For example, an invalid argument may lack logical reasoning, while an invalid document may not meet required standards or criteria.
In computing, "invalid" often describes data that does not conform to expected formats or values. For instance, an invalid email address does not follow the standard structure, making it unusable for communication. In both cases, the concept of invalidity highlights the importance of accuracy and adherence to established rules or guidelines.