O - o
| oar | jufa |
| oath | kalili |
| · | kalilikan |
| obedience | kanminɛli |
| obey | kolo |
| object | minɛn |
| objective | kǔn |
| · | fɛn bonta |
| · | kuntilenna |
| obligation | wajibi |
| · | diyagoya |
| oblige | karaba |
| · | wajibiya |
| observation | filɛli |
| obstacle | kunbalan |
| obtain | sɔ̀rɔ |
| · | masɔrɔ |
| obtuse angle | selekeba |
| occupation | baara |
| ocean | kɔgɔjiba |
| October | ɔkutɔburukalo |
| · | ɔkutɔburu |
| offence | hàkɛ |
| · | gasi |
| offend | baga |
| offender | hakɛkɛla |
| offer | ni |
| · | sɔn |
| offering | nilifɛn |
| · | sarakati |
| office | cakɛda |
| · | biro |
| official | faama |
| oil | tulu |
| oil lamp | fitinɛ |
| ok | ayiwa |
| old | kɔ̀rɔ |
| old age | cɛkɔrɔbaya |
| old person | mɔgɔkɔrɔba |
| old woman | musokɔrɔba |
| older brother | kɔ̀rɔ |
| older person | mɔgɔkɔrɔba |
| Oman | Omani |
| on | sanfɛ |
| · | kàn |
| on the ground | duguma |
| one | kelen |
| one by one | kelen-kelen |
| one-way (ticket) | taali dɔrɔn |
| onion | jàba |
| onion sauce | jabaji |
| only | dama |
| · | dɔrɔn |
| open | dayɛlɛ |
| · | yɛ̀lɛ |
| opener | dayɛlɛlan |
| operate on | opere |
| operation | opereli |
| opinion | hakilinan |
| oppress | degun |
| or | walima |
| · | wala |
| orange | lenburuba |
| orchard | jiriforo |
| ordinary | gansan |
| organisation | ɲɛnabɔli |
| organise | ɲɛnabɔ |
| organiser | ɲɛnabɔbaa |
| · | kolabɛnbaa |
| ornament | masiri |
| orphan | fàntan |
| · | falatɔ |
| · | bantan |
| orthography | sɛbɛncogo |
| ostrich | kɔnɔsogonin |
| otherwise | n'o tɛ |
| Ouagadougou | Wagadugu |
| our | an |
| outdoors | kɛnɛma |
| outside | kɛnɛma |
| outsider | siginfɛ |
| overtake | tɛmɛ |
| · | dàn |
| own | bɛ ... fɛ |
| · | bɛ ... bolo |
| owner | ma |
| · | -tigi |
| ox | misi |
| ox-plough | misidaba |
| · | sari |
| oxygen | nigazi |