Feed on Definition 1 of 3Pro Tip 1/3Literal Eating Used when describing a diet or literal consumption of food by living beings. Goats feed on various shrubs and plants. Pro Tip 2/3Diet Specificity Indicates a particular food or type of food that an organism predominantly consumes. Pandas mainly feed on bamboo. Pro Tip 3/3Not Always Physical Can imply a non-physical or spiritual sustenance in poetic contexts. The soul feeds on art and beauty.