WordWeb Online

1. (law) lacking any legal or binding force
   "null and void";
   - void
    
2. Being or related to zero, esp. (mathematics) having zero norm or only zero elements

1. No amount at all; something of no value or importance
   - nothing, nil, nix [informal], nada [N. Amer, informal], aught [archaic], cipher, cypher, goose egg [N. Amer, informal], naught [N. Amer], zero, zilch [informal], zip, zippo [N. Amer, informal], nought [Brit]

Derived forms: nulls

See also: invalid

Type of: relative quantity

Encyclopedia: Null, Luke