(genetics) The variation of the number of copies (normally two) of a gene, or of sequences of DNA, in the genome of a specific individual; has been linked to some diseases

(astronomy) Any star whose brightness varies.

(US) A shop where many small and inexpensive items can be bought.

(automotive) Any of several forms of automatic transmission, without specific gears, in which the gear ratio may be changed without any noticeable steps.

(computing) A variable used for storing the address of another variable or structure, equivalent to a pointer.

(accounting) plural of variable cost

(statistics, metrics) A variable with values which have no numerical value, such as gender or occupation.

(statistics) An ordinal variable with the additional property that the magnitudes of the differences between two values are meaningful.

(statistics) A variable with the features of interval variable and, additionally, whose any two values have meaningful ratio, making the operations of multiplication and division meaningful.

(statistics) A variable with values whose order is significant, but on which no meaningful arithmetic-like operations can be performed.