| Engelsk navneord: Ob | 
| 1. | Ob (om ting) a major river of western Siberia; flows generally northward and westward to the Gulf of Ob and the Kara Sea | 
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 | Termer med samme betydning (synonymer) | Ob River | 
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 | Eksempler på forekomster af mindre specifikke termer | river | 
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 | Omfatter disse overordnede termer | Siberia | 
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| 2. | OB (om erkendelse) the branch of medicine dealing with childbirth and care of the mother | 
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 | Termer med samme betydning (synonymer) | midwifery, obstetrics, tocology | 
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 | Mindre specifikke termer | medical specialty, medicine | 
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 | Mere specifikke termer | fetology, foetology, perinatology | 
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 | Indenfor samme emneområde | gravida I, incompetent cervix, induction of labor, nullipara, para, para I, parity, presentation, primigravida, primipara, quadripara, quintipara | 
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