a person or thing that takes or can take the place of another
an athlete who plays only when a starter on the team is replaced
put in the place of another; switch seemingly equivalent items; "the con artist replaced the original with a fake Rembrandt"; "substitute regular milk with fat-free milk"
be a substitute; "The young teacher had to substitute for the sick colleague"; "The skim milk substitutes for cream--we are on a strict diet"
act as a substitute; "She stood in for the soprano who suffered from a cold"
the act of preparing something (as food) by the application of heat; "cooking can be a great art"; "people are needed who have experience in cookery"; "he left the preparation of meals to his wife"
take the place or move into the position of; "Smith replaced Miller as CEO after Miller left"; "the computer has supplanted the slide rule"; "Mary replaced Susan as the team's captain and the highest-ranked player in the school"
an extended communication (often interactive) dealing with some particular topic; "the book contains an excellent discussion of modal logic"; "his treatment of the race question is badly biased"
an exchange of views on some topic; "we had a good discussion"; "we had a word or two about it"
(chess) the capture by both players (usually on consecutive moves) of pieces of equal value; "the endgame began after the exchange of queens"
(chess) gaining (or losing) a rook in return for a knight or bishop; "black lost the exchange"
reciprocal transfer of equivalent sums of money especially the currencies of different countries; "he earns his living from the interchange of currency"
the act of giving something in return for something received; "deductible losses on sales or exchanges of property are allowable"
the act of changing one thing for another thing; "Adam was promised immortality in exchange for his disobedience"; "there was an exchange of prisoners"
a workplace for buying and selling; open only to members
a mutual expression of views (especially an unpleasant one); "they had a bitter exchange"
chemical process in which one atom or ion or group changes places with another
give to, and receive from, one another; "Would you change places with me?"; "We have been exchanging letters for a year"
hand over one and receive another, approximately equivalent; "exchange prisoners"; "exchange employees between branches of the company"