OMIKRON
[Ο, ο] (omʹi·kron, meaning “little o”).
The fifteenth letter of the Greek alphabet. It is one of the two letters denoting an “o” sound and has the short sound of “o” as in “not.”—See OMEGA.
As the numeral, accented oʹmi·kron (ο΄) signifies seventy, with the subscript (,ο), 70,000.