alphabet - a character set that includes letters and is used to write a language

alpha - the 1st letter of the Greek alphabet

beta - the 2nd letter of the Greek alphabet

gamma - the 3rd letter of the Greek alphabet

delta - the 4th letter of the Greek alphabet

epsilon - the 5th letter of the Greek alphabet

zeta - the 6th letter of the Greek alphabet

eta - the 7th letter of the Greek alphabet

theta - the 8th letter of the Greek alphabet

iota - the 9th letter of the Greek alphabet

kappa - the 10th letter of the Greek alphabet

lambda - the 11th letter of the Greek alphabet

mu - the 12th letter of the Greek alphabet

nu - the 13th letter of the Greek alphabet

xi - the 14th letter of the Greek alphabet

omicron - the 15th letter of the Greek alphabet

pi - the 16th letter of the Greek alphabet

rho - the 17th letter of the Greek alphabet

sigma - the 18th letter of the Greek alphabet

tau - the 19th letter of the Greek alphabet

upsilon - the 20th letter of the Greek alphabet

phi - the 21st letter of the Greek alphabet

khi, chi - the 22nd letter of the Greek alphabet

psi - the 23rd letter of the Greek alphabet

omega - the last (24th) letter of the Greek alphabet