It refers to something real; exactly what it appears to be; not artificial

to see or notice a person or thing, especially suddenly or when it is not easy to do so

a picture that is made by using a camera that stores images in digital form or that has a film

a very thin fold or line made on paper, cloth or skin

the expression that you have on your face when you are happy or you think something is funny, in which the corners of your mouth turn upwards

Not what somebody claims it is; appearing to be something it is not