The TERM 'A Prolonged Period of Time' can be represented by five different words: EON (3 letters), SIEGE (5 letters), TERM (4 letters), COMA (4 letters), and ERA (3 letters). An EON is an extremely long period of time, usually lasting millions of years. A SIEGE is a prolonged military operation in which an army surrounds a fortified place and tries to capture it. A TERM is a set length of time, often used to refer to a school year or a political office. A COMA is a state of unconsciousness that can last for days, weeks, or even months. An ERA is a period of time marked by a particular set of characteristics or events.