Synonyms for Whortleberry (same or very similar meaning)
WordNet sense 1 (erect European blueberry having solitary flowers and blue-black berries):
bilberry, blaeberry, whinberry, Viccinium myrtillusWordNet sense 2 (blue-black berries similar to American blueberries):
European blueberryFrom the ODE community, based on WordNetadd/edit