Ƙamus ɗin Hausa wanda yake bada ma’ana da bayanin kalma cikin harshen Hausa ayanar gizo-gizo cikin sauƙi
Organization Of African Trade Union Unity (OATUU) - Gamayyar Ƙungiyar 'Ƴankasuwa Ta Afirka
Organization of Islamic Cooperation (OIC) - Kadaurar Haɗa-Kan Musulmi
Organization of Petroleum Exporting Countries (OPEC) - Ƙungiyar Ƙasashe Masu Arzikin Fetur
Organization Of Trade Unions of West Africa (OTUWA) - Ƙungiyar 'Ƴankasuwa Ta Yammacin Afirka
Origin - A turance tana nufin origin.
Misali; Annabi Muhammad yana da kyakkyawan asali.
HAU; Asali (Tana nufin tushe ko mafari)
Outdoor Advertising Association Of Nigeria (OAAN) - Ƙungiyar Kamfanonin Allunan Talla Ta Najeriya
Outsider - A turance tana nufin bare.
Misali; Iliya bare ne, ba mu da dangantaka da shi.
HAU; Bare (Tana nufin wanda ba a da dangantaka ta jini da shi)
Pagan - A turance tana nufin arne.
Misali; Duk wanda ba shi da addini arne ne.
HAU; Arne (Tana nufin wanda ba shi da addini)
Palm wine - A turance tana nufin bammi.
Misali; Bammi yake sha shi yasa kullum ba ya cikin hayyacinsa.
HAU; Bammi (Abin sha ne mai gusar da hankali)
Parent Teachers Association (PTA) - Ƙungiyar Iyaye da Malaman Makaranta