The term 'underneath' is used to describe something that is LOWER, BOTTOM, BENEATH, UNDERCOVER, or BELOW. It is often used to describe the position of an object in relation to another object. For example, if something is underneath a table, it would be LOWER than the table. It can also be used to describe the location of something, such as being underneath a bridge or underneath a layer of clothing. In the crossword solutions, 'LOWER' (5 letters), 'BOTTOM' (6 letters), 'BENEATH' (7 letters), 'UNDERCOVER' (10 letters), and 'BELOW' (5 letters) all refer to the same concept of being underneath something.