Floridaâs tract of coral reefs has the honor of being the third-largest barrier reef ecosystem in the world. However, it could soon be a thing of the past, as the acidification of the oceanâs water is dissolving it faster than it can rebuild.
index (plural indexes or indices) 1  An alphabetical listing of items and their location. The index of a book lists words or expressions and the pages of the book upon which they are to be found. 2  The index finger; the forefinger. 3  A movable finger on a gauge, scale, etc.
Short, simple, and no need to change your format. Index is a vlookup/hlookup function (vlookup is automatic and index is the stick in a car). Small looks at a list and the 2nd parameter looks at which rank you put, i.e. 1,2,3, etc.