noun the act of changing one thing for another thing
noun a workplace that serves as a telecommunications facility where lines from telephones can be connected together to permit communication
noun (sports) an unbroken sequence of several successive strokes
noun reciprocal transfer of equivalent sums of money (especially the currencies of different countries)
noun the act of putting one thing or person in the place of another:
verb give to, and receive from, one another
verb exchange or replace with another, usually of the same kind or category
verb change over, change around, as to a new order or sequence
verb put in the place of another; switch seemingly equivalent items
Source: WordNet 3.1, Princeton University
