walk, walking - the act of traveling by foot; "walking is a healthy form of exercise"

step - the act of changing location by raising the foot and setting it down; "he walked with unsteady steps"

pneumatic tire, pneumatic tyre - a tire made of reinforced rubber and filled with compressed air; used on motor vehicles and bicycles etc

surface - the outer boundary of an artifact or a material layer constituting or resembling such a boundary; "there is a special cleaner for these surfaces"; "the cloth had a pattern of red dots on a white surface"

tangency, contact - (electronics) a junction where things (as two electrical conductors) touch or are in physical contact; "they forget to solder the contacts"

stair, step - support consisting of a place to rest the foot while ascending or descending a stairway; "he paused on the bottom step"

structural member - support that is a constituent part of any structure or building

go, locomote, move, travel - change location; move, travel, or proceed; "How fast does your new car go?"; "We travelled from Rome to Naples by bus"; "The policemen went from door to door looking for the suspect"; "The soldiers moved towards the city in an attempt to take it before night fell"

step on, tread on - place or press the foot on; "He stepped on the hem of her long gown"

walk - use one's feet to advance; advance by steps; "Walk, don't run!"; "We walked instead of driving"; "She walks with a slight limp"; "The patient cannot walk yet"; "Walk over to the cabinet"

treadle - tread over; "the brickmaker treadles over clay to pick out the stones"

mash, squash, squeeze, crush, squelch - to compress with violence, out of natural shape or condition; "crush an aluminum can"; "squeeze a lemon"

brace - support by bracing

apply, give - give or convey physically; "She gave him First Aid"; "I gave him a punch in the nose"

copulate, mate, couple, pair - make love; "Birds mate in the Spring"