n a numerical scale used to compare variables with one another or with some reference number
n a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time
n a mathematical notation indicating the number of times a quantity is multiplied by itself
n an alphabetical listing of names and topics along with page numbers where they are discussed
n the finger next to the thumb
pl. 索引, 指针, 指数, 指标