The term 90 degrees is a measure of an angle, which is the space between two lines that meet at a point. The crossword solutions for this term are OBTUSE (6 letters), EAST (4 letters), ELL (3 letters), ACUTE (5 letters), dueeast (7 letters), and rightangle (10 letters). OBTUSE refers to an angle that is greater than 90 degrees, EAST is a direction on a compass, ELL is a shape with three sides, ACUTE is an angle that is less than 90 degrees, dueeast is a direction on a compass, and rightangle is an angle that is exactly 90 degrees.