spicebush Syllabification: (spice·bush)Pronunciation: /ˈspīsˌbo͝oSH/Definition of spicebush noun a North American shrub with aromatic leaves, bark, and fruit. The leaves were formerly used for a tea and the fruit as an allspice substitute. Lindera benzoin, family Lauraceae spicebush in other Oxford dictionaries Definition of spicebush in the British & World English dictionary