re‧a‧lign‧ment [uncountable and countable]
when something is changed and organized in a different way [= reorganization]
a realignment of the company's management structure
when people stop supporting one group and start to support and work together with a different group
There is now a need for a realignment of political parties.
when the parts of something are arranged so that they return to their correct positions in relation to each other:
the realignment of several major roads