- Dichlorodiphenyldichloroethane, an insecticide related to DDT
- Direct distance dialing, a network-provided service that permits non-local phone calls is made without operator support
- Die-deterioration doubling, a typical as a type of mint-made error on coins that results from degradation associated with die regularly hit the coin
- A designation on prerecorded music cds indicating a "full digital recording" (taped, blended and learned in digital); compare AAD, combine, father.
Sentence for "DDD"
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Urban Dictionary for "DDD"