The term LIME can refer to a few different things. The first is the GREEN citrus fruit, which is five letters long and has a sour taste. It is often used in cooking and cocktails. The second is a type of CEMENT, which is six letters long and is used in construction. The third is a type of tree, which is four letters long and is native to tropical regions. Lastly, it can refer to a type of drink, the Rickey, which is six letters long and is made with lime juice, soda water, and alcohol.