Fall into rank is a phrase commonly used in the military or other organized groups to describe the act of arranging oneself in a formation or line. There are several synonyms for this phrase including "align oneself", "form up", "take position", "stand in formation" and "fall into line". These phrases can be used interchangeably depending on the context in which they are being used. Regardless of the phrase used, the idea behind them all is the same: getting individuals into a structured and organized formation so that they can work as a team toward a common goal.