define grunt
âgruntâ in British English. See all translations. gruntverb [ I ] uk â /É¡rÊnt/ us â /É¡rÊnt/. âº (of a pig) to make a low, rough noise: The pigs were grunting contentedly as they ate their food. âº (of a person) to make a short, low sound instead of speaking, usually because of anger or pain: He hauled himself over the wall, grunting with the effort.