exchange

[1]	trade , barter , switch , change , interchange , reciprocate , return , (Colloq) swap/swop
[2]	change , interchange
[3]	change , commute , convert
[4]	switch over , switch
[5]	substitute , replace , interchange
[6]	commute , convert

[1]	trade , barter , change , traffic , commerce , dealing , truck , transfer , interchange , reciprocity , reciprocation , switch , quid pro quo , tit for tat , (Colloq) swap/swop
[2]	altercation , interchange , argument , quarrel , disagreement , unpleasantness
[3]	market , stock market , Stock Exchange , securities exchange , the Market , the Board , the Big Board , the Exchange , the Bourse , Wall Street , (US) the Street
[4]	central , telephone exchange
[5]	rally
[6]	interchange
[7]	substitution , commutation