addition, adjunct, aggrandizement, ambling, ambulation, ampliation, amplification, augmentation, backpacking, broadening, crescendo, deployment, dispersion, enlargement, expansion, extension, fanning out, flare, footing, footing it, footwork, going on foot, hitchhiking, hitching, hoofing, increase, legwork, lumbering, magnification, marching, pedestrianism, perambulation, raising, sauntering, splay, spread, spreading, staggering, strolling, thumbing, thumbing a ride, toddling, tottering, tramping, treading, trudging, upping, waddling, walking, widening