look
"Look" is one of the most common and useful words in English. It works as both a verb and a noun, and it has several important meanings — from directing your eyes somewhere, to appearing a certain way, to getting someone's attention. Here are the most common ones.
This is the most basic meaning. When you 'look' at something, you turn your eyes toward it on purpose. It's different from 'see' — seeing can happen without trying, but looking is a deliberate action. Think of it this way: you might *see* a bird out of the corner of your eye, but then you *look* at it to get a better view.
everyday language · Modern, widely used
When you say 'Look!' or 'Look,' at the start of a sentence, you are not really asking someone to use their eyes. You are trying to get their attention before saying something important, or sometimes to express mild frustration or emphasis.
everyday language, conversation · Modern, widely used · figurative