S: (n) X, x, ex (the 24th letter of the Roman alphabet)
S: (n) Y, y, wye (the 25th letter of the Roman alphabet)
S: (n) Z, z, zee, zed, ezed, izzard (the 26th letter of the Roman alphabet) "the British call Z zed and the Scots call it ezed but Americans call it zee"; "he doesn't know A from izzard"
S: (n) alpha (the 1st letter of the Greek alphabet)
S: (n) beta (the 2nd letter of the Greek alphabet)
S: (n) gamma (the 3rd letter of the Greek alphabet)
S: (n) delta (the 4th letter of the Greek alphabet)
S: (n) waw (the 6th letter of the Hebrew alphabet)
S: (n) zayin (the 7th letter of the Hebrew alphabet)
S: (n) heth (the 8th letter of the Hebrew alphabet)
S: (n) teth (the 9th letter of the Hebrew alphabet)
S: (n) yodh (the 10th letter of the Hebrew alphabet)
S: (n) kaph (the 11th letter of the Hebrew alphabet)
S: (n) lamedh (the 12th letter of the Hebrew alphabet)
S: (n) mem (the 13th letter of the Hebrew alphabet)
S: (n) nun (the 14th letter of the Hebrew alphabet)
S: (n) samekh (the 15th letter of the Hebrew alphabet)
S: (n) ayin (the 16th letter of the Hebrew alphabet)
S: (n) pe (the 17th letter of the Hebrew alphabet)
S: (n) sadhe (the 18th letter of the Hebrew alphabet)
S: (n) qoph (the 19th letter of the Hebrew alphabet)
S: (n) resh (the 20th letter of the Hebrew alphabet)
S: (n) sin (the 21st letter of the Hebrew alphabet)
S: (n) shin (the 22nd letter of the Hebrew alphabet)
S: (n) taw (the 23rd letter of the Hebrew alphabet)
S: (n) polyphone, polyphonic letter (a letter that has two or more pronunciations) "`c' is a polyphone because it is pronounced like `k' in `car' but like `s' in `cell'"