Bokeh is a Japanese term used in photography to describe the aesthetic quality of the out-of-focus areas in an image, often characterized by soft, blurred circles of light. It is derived from the Japanese word 'boke' (暈け or ぼけ), which means 'blur' or 'haze.' In English, it refers to the visual effect created by the lens rendering of points of light that are not in focus, adding a pleasing and artistic background to photographs.
blur
haze
soft focus
defocus
background blur