| DEC | an athletic contest consisting of ten different events |
|---|---|
| DEC | a town in northern Alabama on the Tennessee River |
| DEC | a city in central Illinois |
| DEC | the organic phenomenon of rotting |
| DEC | a gradual decrease |
| DEC | the process of gradually becoming inferior |
| DEC | the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation |
| DEC | an inferior state resulting from the process of decaying |
| DEC | fall into decay or ruin |
| DEC | lose a stored charge, magnetic flux, or current |
| DEC | undergo decay or decomposition |
| DEC | liable to decay or spoil or become putrid |