U+2921 "⤡" North West and South East Arrow Unicode Character

U+2921 "⤡" North West and South East Arrow is a typographic symbol consisting of a single arrowhead that points simultaneously in two opposite diagonal directions, combining the northwest and southeast cardinal axes. It is part of the Supplemental Arrows-B block, which includes various directional and relational arrow symbols used in mathematics, logic, and technical notation. This specific arrow often represents a bidirectional trend or a connection spanning two opposite corners of a rectangular space, such as in diagrams or maps indicating a diagonal stretch or alignment. Its design is compact and lacks a line through the center, distinguishing it from similar double-headed arrows that have separate shafts.