1) Antigone is spelled with two 2) Certain greek letters 3) College sweater letters 4) Followers of mus 5) Frat letters 6) Fraternity characters 7) Fraternity letters 8) Greek consonants 9) Greek letters 10) Greek letters after mus 11) Letters between mus and xis 12) Letters following mus 13) Letters from greece Found on https://www.crosswordclues.com/clue/nus