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Sss vs Ddd - What's the difference?

sss | ddd |

As an initialism sss

is (us) selective service system.

As a noun ddd is

(organic chemistry) dichlorodiphenyldichloroethane, an insecticide related to ddt.

sss

English

Interjection

(en-intj) (qualifier, with any number of 's's to indicate duration)
  • (onomatopoeia) the hiss of a snake or other reptile

    • ddd

    English

    Noun

    (en-initialism)
  • (organic chemistry) Dichlorodiphenyldichloroethane, an insecticide related to DDT
  • (telecommunications) , a network-provided service that enables non-local telephone calls to be made without operator assistance
  • , a common form of mint-made error on coins that results from degradation of the die used to strike the coin
  • A designation on prerecorded compact discs indicating a "full digital recording" (recorded, mixed and mastered in digital); compare AAD, ADD, DAD.