1) Ail 2) Aniseed 3) Benniseed 4) Cardamum 5) Cassareep 6) Condiment 7) Flavoring 8) Flavourer 9) Flavouring 10) Garlicky 11) Gingerroot 12) Herb 13) Herbal 14) Msg 15) Peppercorn 16) Seasoning 17) Sweetener 18) Sweetening 1) Fixings 2) Flavoring 3) Flavourer 4) Flavouring 5) Ingredient 6) Seasoner 7) Seasoning 
[n] - something added to food primarily for the savor it imparts
flavourer noun something added to food primarily for the savor it imparts