vacant - empty, not being used⏎
voluntary - uncharged (fee), offered, done willingly⏎
ultimatum - conditions, final warning, threat, deadline⏎
segment - division, divide, part of something⏎
surplus - glut, superfluity, extra, more than is needed⏎
scrap - cancel, annul, piece, stop using⏎
sue - litigate, claim damages in court⏎
sink - decrease, deteriorate, suppress⏎
white elephant - bane, useless (big, expensive) thing⏎
scale - range, spectrum, measure, gauge⏎