The term 'stranded on an island' can be summarized by the crossword solution 'MAROONED, ' which is an 8-letter word. Marooning is a form of punishment in which a person is left alone on an island or other remote location, usually as a result of a dispute or disagreement. This practice was popularized in the 18th century and was used as a way to punish criminals or those who had committed some kind of offense.