Greek letters delta (Upper case: Δ and Lower case: δ) is used widely in science and economics. It is the fourth letter of Greek alphabets. To type Delta in Word, there are four different ways. Methods to type Delta in Word There are four different ways to insert Delta in Word. Method 1: Math Autocorrect (Fastest) Shortcut for Delta in Word Type “\Delta” and press space to get Δ symbol.… Read More »Four methods to type Delta in Word (Δ/δ): Alt X, Alt Code, Insert > Symbols & Math Autocorrect Shortcut