(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"
preserve with sugar; "Mom always conserved the strawberries we grew in the backyard"
use cautiously and frugally; "I try to economize my spare time"; "conserve your energy for the ascent to the summit"
keep in safety and protect from harm, decay, loss, or destruction; "We preserve these archeological findings"; "The old lady could not keep up the building"; "children must be taught to conserve our national heritage"; "The museum curator conserved the ancient manuscripts"
keep constant through physical or chemical reactions or evolutionary change; "Energy is conserved in this process"
occur between other event or between certain points of time; "the war intervened between the birth of her two children"
get involved, so as to alter or hinder an action, or through force or threat of force; "Why did the U.S. not intervene earlier in WW II?"
be placed or located between other things or extend between spaces and events; "This interludes intervenes between the two movements"; "Eight days intervened"
keep in one's mind; "I cannot retain so much information"
secure and keep for possible future use or application; "The landlord retained the security deposit"; "I reserve the right to disagree"
allow to remain in a place or position; "We cannot continue several servants any longer"; "She retains a lawyer"; "The family's fortune waned and they could not keep their household staff"; "Our grant has run out and we cannot keep you on"; "We kept the work going as long as we could"
hold within; "This soil retains water"; "I retain this drug for a long time"