The term 'LENGTHENED' can be described in a variety of ways, each with a different number of letters. The word 'PROLONGED' has 9 letters and means to make something last longer than it would have originally. 'PROTRACTED' has 10 letters and means to extend the duration of something. 'EXTENDED' has 8 letters and means to make something longer in time or space. 'ELONGATED' has 9 letters and means to make something longer in size or shape. 'EKED' has 4 letters and means to make something last longer than it would have originally. Lastly, 'DREWOUT' has 7 letters and means to make something last longer than it would have originally.