The term TYPE OF CLOCK can refer to a variety of different clocks. The first solution is GRANDFATHER, which is a type of tall clock that typically has a pendulum and weights. CUCKOO is another type of clock, which is a traditional clock with a CUCKOO bird that pops out of a door at the top of the clock to announce the hour. ANALOG is a type of clock that uses hands to indicate the time, rather than digital numbers. BIOLOGICAL is a type of clock that is based on the body's natural rhythms, such as circadian rhythms. Finally, VASE is a type of clock that is shaped like a VASE and is often used as a decorative item.