| OCT | the month following September and preceding November |
|---|---|
| OCT | the cardinal number that is the sum of seven and one |
| OCT | a waxy saturated fatty acid |
| OCT | an eight-sided polygon |
| OCT | of or relating to or shaped like an octagon |
| OCT | any polyhedron having eight plane faces |
| OCT | of or pertaining to a number system having 8 as its base |
| OCT | a digit from 0 to 7 in octal notation |
| OCT | any mathematical notation that uses 8 different characters (usually the digits 0 to 7) |
| OCT | a positional system of numeration that uses octal digits and a radix of 8 |
| OCT | a positional system of numeration that uses octal digits and a radix of 8 |
| OCT | a verse line having eight metrical feet |