同盟tóngméng 1.为采取共同行动而缔结盟约{form an alliance to take a joint action}: ～国{ally; allied nations}|～军{allied forces; allies}|～罢工。{joint strike} 2.由缔结盟约而形成的整体{alliance; league}: 结成～{form (or enter into) an alliance}|军事～{military alliance}|攻守～。{a pact to shied each other}