The term 'Digital Camera UNIT' can be broken down into two parts: 'Digital Camera' and 'UNIT'. The word 'PIXEL' is a 5 letter solution to the crossword and is related to digital cameras. A PIXEL is the smallest UNIT of a digital image or graphic, and it is made up of a combination of colors. Digital cameras use pixels to capture and store images, and the more pixels a camera has, the higher the resolution of the image.