—v.i. 1. to walk heavily or move laboriously; trudge: to plod under the weight of a burden. 2. to proceed in a tediously slow manner: The play just plodded along in the second act. 3. to work with constant and monotonous perseverance; drudge.
—v.t. to walk heavily over or along.
—n. 1. the act or a course of plodding.
2. a sound of a heavy tread.