null has definitions from the field of law
1
[ adjective ] (law) lacking any legal or binding force

Synonyms

void nugatory

Examples

"null and void"

Used in print

(1961 Research Highlights of the National Bureau of...)

The transducer is a null type instrument and employs a stretched diaphragm , 0.001 in. thick and 1 in. in diameter .

Related terms

law invalid

2
[ noun ] Last name, frequency rank in the U.S. is 4509
3
[ noun ] a quantity of no importance

Examples

"it looked like nothing I had ever seen before" "reduced to nil all the work we had done" "we racked up a pathetic goose egg" "it was all for naught" "I didn't hear zilch about it"

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