To alter or control the functioning of (a mechanical device, for example) by the use of a rotating or similar movement: turned the iron to a hotter setting.
To perform or accomplish by rotating or revolving: turn a somersault.
To change the position of so that the underside becomes the upper side: turn the steak; turn a page.
To spade or plow (soil) to bring the undersoil to the surface.
To reverse and resew the material of (a collar, for example).
To revolve in the mind; meditate on; ponder.
To give a rounded form to (wood, for example) by rotating against a cutting tool.
To give a rounded shape to (clay, for example) by rotating and shaping with the hands or tools.
To give a rounded form to: turn a heel in knitting a sock.
To give distinctive, artistic, or graceful form to: "They know precisely how to turn a dramatic line or phrase that is guaranteed to make the evening news” ( William Safire).
To change the position of by traversing an arc of a circle; pivot: turned his chair toward the speaker.
To present in a specified direction by rotating or pivoting: turn one's face to the wall.
To cause (a scale) to move up or down so as to register weight: Even a feather will turn a delicate scale.
To fold, bend, or twist (something).
To change the position or disposition of by folding, bending, or twisting: Turn the design right side up on your jacket buttons. Turn the hat inside out.
To make a bend or curve in: strong enough to turn a bar of steel.
To blunt or dull (the edge of a cutting instrument).
To injure by twisting: turn an ankle.
To upset or make nauseated: That story turns my stomach.
To change the direction or course of: turn the car to the left.
To divert or deflect: turn a stampede.
To reverse the course of; cause to retreat: "Then turn your forces from this paltry siege/And stir them up against a mightier task” ( Shakespeare).
To make a course around or about: turn a corner.