The term 'PEP UP' is used to describe a variety of actions that can be taken to increase energy, enthusiasm, and excitement. The crossword solutions for this term include QUICKEN (7 letters), ACTIVATE (8 letters), EXCITE (6 letters), EXHILARATE (10 letters), ROUSE (5 letters), INVIGORATE (10 letters), ANIMATE (7 letters), ENERGIZE (8 letters), ENLIVEN (7 letters), ENERGISE (8 letters), LIVEN (5 letters), FLAVOR (6 letters), and VIVIFY (6 letters). These words all describe activities that can be done to increase energy levels, such as quickening the pace of an activity, activating a person's enthusiasm, exciting them, exhilarating them, rousing them, invigorating them, animating them, energizing them, enlivening them, energising them, livening them, flavoring them, and vivifying them.