[, ] () () a situation in which sb has the legal right to force sb to sell sth, for example when the government needs to buy land in order to build a road强制购买（有强迫别人出售某物的合法权利，如政府为筑路需要购买土地）◆The Council obtained a compulsory purchase order on the land (= legal permission to buy it).议会获得了土地的强制购买令。