Unlocking the mystery: What do picture frames usually do in this crossword?

The answer to the crossword question “Picture frames, usually is RECTANGLES” is the word “RECTANGLE.” This is because when we think of picture frames, we usually think of the rectangular shape that is most commonly used. Picture frames come in many different sizes and styles, but the rectangular shape is the most traditional and commonly used. The word “rectangle” refers to a four-sided figure with opposite sides of equal length and four right angles. This type of shape is perfect for framing pictures because it creates a neat and orderly visual frame around the picture.