The Oxford Thesaurus An A-Z Dictionary of Synonyms - tangn.

1) pungency, piquancy, bite, zest, zestiness, sharpness, poignancy, spiciness, nip, edge, spice, taste, flavour, savour, aroma, smell, odour, Colloq zip, kick: Ginger root gives the dish just the right tang. 2) tinge, flavour, hint, suggestion, soup‡on, trace, dab, smack, touch, smattering: The new version has the tang of the original without its obsolete words. 3) prong, tab, projection, tongue, strip, tine, shank, pin, spike: The tang of a good knife goes right through to the end of the handle.