What does null mean in crosswords?

null means: lacking any legal or binding force

Which crossword clues can have null as the answer?

Possible clues for null include "Having no effect", "No value".

Word entry · 4 letters

Best crossword clue

"Having no effect"

4 letters · collected on this word page

4 lettersPronunciation /nʌl/Part of speech adjective, nounSorted llnuStarts with NEnds with L2 cluesVery common crossword word

1N2U3L4L

Borrowed from Middle French nul, from Latin nūllus.

“The kindes of Cyphars, (beſides the Simple Cyphars with Changes, and the intermixtures of Nvlles, and Nonsignificants) are many, according to the Nature or Rule of infoulding : Wheele-Cyphars, Kay-Cyphars, Dovbles, &c.”
“Since no date of birth was entered for the patient, his age is null.”
“The most recent attempt to contact Pioneer 10 was on 6-7 February 2003. But in this case, the Madrid station got conclusively null results after an assiduous search.”

Source: Wiktionary, CC BY-SA 4.0

01“Having no effect”4 letters

02“No value”4 letters

Not quite right?

N___