|Sunday, April 22, 2012||55A||O||Paula Gamache and Ed Stein|
|Friday, March 10, 2006||40D||A fraternity chapter||Kevin McCann|
|Tuesday, February 22, 2005||29A||Pi preceder||Ed Early|
|Saturday, March 29, 2003||33D||Certain fraternity chapter||Michael Shteyman|
1 result for OMICRON from Variety puzzles.
|February 16, 2003||cryptic||8A||Awfully moronic character from Greece (7)||Emily Cox and Henry Rathvon|
4 results for OMICRON from older pre-Shortz puzzles.
|Sunday, March 28, 1993||96D||Xi follower||Judith C. Dalton||Maleska|
|Friday, February 20, 1987||16A||First letter given to Odysseus||Eugene T. Maleska||Maleska|
|Thursday, October 27, 1983||62A||Circular Greek letter||Bernice Gordon||Maleska|
|Saturday, February 5, 1983||17A||Greek letter||Joe Clonick||Maleska|