Sell short is a term used to describe a situation in which an investor sells a stock at a lower price than its actual value. The related crossword solutions are UNDERESTIMATE (13 letters), UNDE (4 letters), UNDERRATE (9 letters) and RIPOFF (6 letters). Understimate means to UNDERESTIMATE the value of something, UNDE is an abbreviation for 'undervalued', UNDERRATE means to rate something lower than it should be, and RIPOFF means to take advantage of someone by charging too much for something. All of these terms relate to the concept of selling short, as they all involve selling something for less than it is worth.