1.Definition: a code of letters and digits added to a postal address to aid in the sorting of mail

Related Noun(s):postcode

Category: General

2.Definition: a fastener for locking together two toothed edges by means of a sliding tab

Related Noun(s):zipper

Category: Objects

3.Definition: a quantity of no importance

Related Noun(s):aught, cipher, cypher, naught, nil, nix, nothing, null, zero, zilch, zippo

Category: General

4.Definition: forceful exertion

"He plays tennis with great energy", "He's full of zip"

Related Noun(s):energy, vigor, vigour

Category: General