Null
NULL, verb transitive [Latin not any.] To annul; to deprive of validity; to destroy. [Not much used.] [See Annul.]
NULL, adjective Void; of no legal or binding force or validity; of no efficacy; invalid. The contract of a minor is null in law, except for necessaries.
NULL, noun Something that has no force or meaning. A cipher is called a null [Not used.]