Real Dictionary

look appearance
link verb: You use look when describing the appearance of a person or thing or the impression that they give.
link verb: You use look when indicating what you think will happen in the future or how a situation seems to you.
plural noun: When you refer to someone's looks, you are referring to how beautiful or ugly they are, especially how beautiful they are.
singular noun: If someone or something has a particular look, they have a particular appearance or expression.

look in American English
to make use of the sense of sight; see
intransitive verb: to turn one's eyes toward something or in some direction in order to see
transitive verb: to give (someone) a look

look in British English
to direct the eyes (towards)

look using your eyes or your mind
convention: You say look when you want someone to pay attention to you because you are going to say something important.
verb: If someone, especially an expert, looks at something, they examine it, and then deal with it or say how it should be dealt with.
verb: If something such as a building or window looks somewhere, it has a view of a particular place.
verb: If you are looking for something such as the solution to a problem or a new method, you want it and are trying to obtain it or think of it.
verb: If you are looking to do something, you are aiming to do it.
verb: If you look at a book, newspaper, or magazine, you read it fairly quickly or read part of it.
verb: If you look at a person, situation, or subject from a particular point of view, you judge them or consider them from that point of view.
verb: If you look at a subject, problem, or situation, you think about it or study it, so that you know all about it and can perhaps consider what should be done in relation to it.
verb: If you look at someone in a particular way, you look at them with your expression showing what you are feeling or thinking.
verb: If you look for something, for example something that you have lost, you try to find it.
verb: If you look in a particular direction, you direct your eyes in that direction, especially so that you can see what is there or see what something is like.
verb: You can use look to draw attention to a particular situation, person, or thing, for example because you find it very surprising, significant, or annoying.