tread

(noun) a step in walking or running. Synonyms: pace, stride.

(noun) the grooved surface of a pneumatic tire.

(noun) the part (as of a wheel or shoe) that makes contact with the ground.

(noun) structural member consisting of the horizontal part of a stair or step.

(verb) put down or press the foot, place the foot. Synonyms: step. Examples: "For fools rush in where angels fear to tread." "Step on the brake."

(verb) tread or stomp heavily or roughly. Synonyms: trample. Example: "The soldiers trampled across the fields."

(verb) crush as if by treading on. Example: "Tread grapes to make wine."

(verb) brace (an archer's bow) by pressing the foot against the center.

(verb) apply (the tread) to a tire.

(verb) mate with. Example: "Male birds tread the females."