An arrowhead is a pointed stone tool used for hunting and warfare. The term 'arrowhead' can refer to four different crossword solutions: BARB (4 letters), SAGITTATE (9 letters), OBSIDIAN (8 letters), and BOWMAN (6 letters). BARB is a sharp projection from an arrow or spear, while SAGITTATE refers to the shape of an arrowhead, which is typically triangular with a curved base. OBSIDIAN is a type of volcanic glass that was often used to make arrowheads, and BOWMAN is someone who uses a bow and arrow.