North Pole, South Pole, antipodal points, antipode, antipodes, antipoints, antipoles, antithesis, antonym, black and white, contra, contradictory, contraposita, contrapositives, contraries, contrary, converse, counter, counterbalance, countercheck, counterpoint, counterpoise, counterpole, counterpoles, counterterm, foil, inverse, night and day, obverse, offset, opposite, opposite number, opposite poles, opposites, polar opposites, poles, reverse, setoff, the contrary, the other side, vis-a-vis