oma, ombak, ombak-ombakan, ombyok, ombyokan, omel, omelan, omong, omong-omong, ompol, ompong, ompreng, omprengan, ompu, omset, omzet,

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Sexually transmitted diseases, in this context, are not restricted to classic venereal disease such as gonorrhea, syphilis, and chlamydia. For a historic perspective, one will have to include pests such as scabies and other diseases that are transmitted through close physical contact, whether sexual or not.