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WordBand 6.5–8Academic (NAWL)
null
/nʌl/
adjective1 of 3
having no impact
noun2 of 3
A non-existent or empty value or set of values.
verb3 of 3
To crack; to remove restrictions or limitations in (software).
Source: New Academic Word List (Browne, Culligan & Phillips) (CC BY-SA 4.0); Wiktionary (CC BY-SA 3.0)