What context can I use each word in?
Learn when and how to use these words with these examples!
invalid
Example
The contract is invalid because it was signed under duress. [invalid: adjective]
Example
She was declared invalid after her accident and could no longer work. [invalid: noun]
Example
His argument was invalid because he used faulty data. [invalid: adjective]
null
Example
The results were null because the experiment was flawed. [null: adjective]
Example
The database returned a null value for that field. [null: noun]
Example
The contract was declared null and void due to a breach of terms. [null: adjective]
Good things to know
Which word is more common?
Invalid is more common in everyday language, while null is more common in technical or legal contexts.
What’s the difference in the tone of formality between invalid and null?
Null is typically more formal than invalid, as it is often used in technical or legal documents.
