SDFs
tanım: SDF SDF (Sans domicile fixe) homeless person

SDN
tanım: SDN (Société de Nations) League of Nations, international organization established after World War l to create world peace and cooperation, forerunner of the United Nations

SDNs
tanım: SDN SDN (Société de Nations) League of Nations, international organization established after World War l to create world peace and cooperation, forerunner of the United Nations