Synonyms for Turnip Cabbage (same or very similar meaning)
WordNet sense 1 (a cruciferous plant with a thick bulbous edible yellow root):
rutabaga, swede, Brassica napus napobrassica, rutabaga plant, swedish turnipWordNet sense 2 (fleshy turnip-shaped edible stem of the kohlrabi plant):
kohlrabiFrom the ODE community, based on WordNetadd/edit