The term 'on the ceiling' can be summarized as being located ABOVE one's head. This phrase is often used to describe something that is attached to the uppermost part of a room, such as a light fixture or a painting. It can also be used to refer to the highest point of a structure, such as the roof of a building. The crossword solution for this term is 'ABOVE, ' which is a five-letter word meaning in a higher position than something else.