[{"Bold_text": "verb (used without object)", "List Items": ["to set down the foot or feet in walking; step; walk.", "to step, walk, or trample so as to press, crush, or injure something (usually followed byonorupon):to tread on a person's foot.", "(of a male bird) to copulate."]}, {"Bold_text": "verb (used with object)", "List Items": ["to step or walk on, about, in, or along.", "to trample or crush underfoot.", "to form by the action of walking or trampling:to tread a path.", "to treat with disdainful harshness or cruelty; crush; oppress.", "to perform by walking or dancing:to tread a measure.", "(of a male bird) to copulate with (a female bird)."]}, {"Bold_text": "noun", "List Items": ["the action of treading, stepping, or walking.", "the sound of footsteps.", "manner of treading or walking.", "a single step as in walking.", "any of various things or parts on which a person or thing treads, stands, or moves.", "the part of the under surface of the foot or of a shoe that touches the ground.", "the horizontal upper surface of a step in a stair, on which the foot is placed.", "the part of a wheel, tire, or runner that bears on the road, rail, etc.", "the pattern raised on or cut into the face of a rubber tire.", "Alsocat?erpillar tread?.a metal tread on which a Caterpillar-style vehicle moves.", "Railroads.that part of a rail in contact with the treads of wheels."]}]