adj Having no legal or binding force; invalid.
- The contract was declared null after the fraud came to light.
- Without a signature, the agreement is null and has no legal weight.
- The court ruled the will null because it was never witnessed.
adj Amounting to nothing; nonexistent or without effect.
- His objections were null once the deadline had passed.
- Her chances of winning became null after she missed the final round.
- The effect of the medicine was null, so the doctor tried another.
noun In computing, a value representing the absence of any data.
- The field returned null because the user never entered a phone number.
- If the form is left blank, the database stores a null.
- The program crashed when it tried to read a null instead of a number.
verb To make void; to cancel out.
- The referee's decision nulled the goal.
- A single missing signature can null the whole agreement.
- The judge's ruling nulled the earlier decision.
