Real Dictionary

turn
link verb: If something turns a particular colour or if something turns it a particular colour, it becomes that colour.
link verb: You can use turn before an adjective to indicate that something or someone changes by acquiring the quality described by the adjective.
verb: If you turn a weapon or an aggressive feeling on someone, you point it at them or direct it at them.
verb: If you turn to a particular activity, job, or way of doing something, you start doing or using it.
verb: If you turn to a particular page in a book or magazine, you open it at that page.
verb: If you turn to someone, you ask for their help or advice.
verb: If you turn your attention or thoughts to a particular subject or if you turn to it, you start thinking about it or discussing it.
verb: The point where a road, path, or river turns, is the point where it has a bend or curve in it.
verb: To turn or be turned into something means to become that thing.
verb: When someone turns a cartwheel or a somersault, they do a cartwheel or somersault.
verb: When something such as a wheel turns, or when you turn it, it continually moves around in a particular direction.
verb: When the tide turns, it starts coming in or going out.
verb: When you turn a page of a book or magazine, you move it so that is flat against the previous page, and you can read the next page.
verb: When you turn in a particular direction or turn a corner, you change the direction in which you are moving or travelling.
verb: When you turn or when you turn part of your body, you move your body or part of your body so that it is facing in a different or opposite direction.
verb: When you turn something such as a key, knob, or switch, or when it turns, you hold it and twist your hand, in order to open something or make it start working.
verb: When you turn something, you move it so that it is facing in a different or opposite direction, or is in a very different position.

turn in American English
to make (a wheel, globe, etc.) move about a central point or axis; revolve or rotate
intransitive verb: to move around on an axis or about a center; rotate
transitive verb: to cause to move around on an axis or about a center; rotate

turn in British English
verb: to move or cause to move around an axis