The term 'lantern' can be broken down into four crossword solutions: LIGHT (5 letters), LAMP (4 letters), JAW (3 letters), and jacko (5 letters). A lantern is a portable source of LIGHT, typically consisting of a metal or glass container with a handle and a fuel source such as oil, wax, or gas. The fuel source is lit to create a bright LIGHT that can be used for illumination in dark areas. The word 'LIGHT' is often used to refer to the lantern itself, while 'LAMP' is used to refer to the fuel source. The word 'JAW' is likely referring to the handle of the lantern, which is usually made of metal and has a curved shape resembling a JAW. Finally, 'jacko' is a slang term for a lantern, derived from the name Jack-o'-lantern.