A copter blade is a part of a helicopter that helps it to fly. The crossword solutions for the term 'copter blade' are 'ROTOR' (5 letters), 'rotors' (6 letters), 'giros' (5 letters), 'heli' (4 letters), 'giro' (4 letters), and 'VANE' (4 letters). ROTOR and rotors refer to the main spinning blades of a helicopter, while giros, heli, giro, and VANE all refer to the same thing, which is the same as ROTOR but with different spellings.