After the election, there was a significant realignment of power among political parties.

realignment 是由前缀 re-（表示"重新"）和名词 alignment（排列、结盟）组成的复合名词。alignment 来自动词 align（使排成一线、结盟），加上名词后缀 -ment。realignment 字面意思是"重新排列"，引申为"力量对比的重新调整"。