| Organisations internationales | International organization |
| Organisations musulmanes en Suisse | Islam in Switzerland |
| organisatrice | organizer |
| organiser | arrange |
| organiser son emploi du temps pour la journée | plan one's day |
| Organiser ¸ élaborer | To synthesize |
| organisme | body |
| organisme administratif a compétence environnementale | environmental administration institution |
| organisme aquatique | aquatic organism |
| organisme d'eau douce | freshwater organism |
| Organisme de normalisation | Standards organization |
| organisme de radiodiffusion | broadcasting corporation |
| Organisme des Nations unies chargé de la surveillance de la trêve | United Nations Truce Supervision Organization |
| organisme génétiquement modifié | genetically modified organism |
| Organisme humain | Human organism |
| organisme marin | marine organism |
| Organisme modèle | Model organism |
| organisme non cible | non-target organism |
| organisme pathogène | pathogenic organism |
| Organisme pluricellulaire | Multicellular organism |
| Organisme privé | Institution |
| organisme utile | beneficial organism |
| Organisme vivant | Organism |
| organiste | organist |
| Organiste olive | Olive-backed Euphonia |
| organisé | organized |
| organite | organelle |
| Organomagnésien | Grignard reaction |
| Organomégalie | Organomegaly |
| Organométallique | Organometallic chemistry |
| Organon BioSciences | Organon International |
| Organotrophie | Organotroph |
| Organum | Organum |
| orgasme | orgasm |
| Orgasmotron | Orgasmatron |
| orge | barley |
| Orge commune | Barley |
| Orge des rats | Hordeum murinum |
| orge mondé | pearl barley |
| orge perlé | pearl barley |
| Orgeat | Barley water |
| orgelet | sty |
