| ought to | dever |
| Ouidah | Fortaleza de São João Baptista de Ajudá |
| Oulens-sous-Echallens | Oulens-sous-Echallens |
| Oulens-sur-Lucens | Oulens-sur-Lucens |
| Oulipo | Oulipo |
| Oulu | Oulu |
| Oulu Province | Oulu |
| Oulu railway station | Oulu |
| Oulujärvi | Oulu |
| Oum el-Bouaghi | Oum el Bouaghi |
| Oum el-Bouaghi Province | Oum el Bouaghi |
| ounce | onça |
| ouncele | onça (peso) |
| our | nossa |
| Our Common Future | Relatório Brundtland |
| Our Lady | Nossa Senhora |
| Our Lady of Aparecida | Nossa Senhora da Conceição Aparecida |
| Our Lady of Fatima | Nossa Senhora de Fátima |
| Our Lady of Guadalupe | Nossa Senhora de Guadalupe |
| Our Lady of Meritxell | Santuário de Meritxell |
| Our Lady of Mount Carmel | Nossa Senhora do Carmo |
| Our Lady of Sorrows | Nossa Senhora das Dores |
| Our Lady of the Rosary | Nossa Senhora do Rosário |
| Our Land | Hino nacional da Finlândia |
| Our Lips Are Sealed | Our Lips Are Sealed |
| Our Lord | Nosso Senhorpé |
| Our Love to Admire | Our Love To Admire |
| Our Man in Havana | Nosso Homem em Havana |
| Our Mother of Perpetual Help | Nossa Senhora do Perpétuo Socorro |
| Our Worlds at War | Our Worlds at War |
| Ouran High School Host Club | Ouran High School Host Club |
| Ouranosaurus | Ouranossauro |
| Ourea | Ourea |
| Ourense | Ourense |
| Ourique | Ourique |
| Ouro Preto | Ouro Preto |
| Ouroboros | Ouroboros |
| ours | nossa |
| Ours-Pierre-Armand Petit-Dufrénoy | Pierre Armand Dufrenoy |
| ourselves | nos |
| ourtle | nossoi |
| Ousmane Sembène | Ousmane Sembène |
| Oussouye Department | Oussouye |
| oust | destronar |
| Oustspread | Adastado |
| out | fora |
| out for | propenso a |
| Out for a Kill | The Punisher |
| out for power | autoritário |
| out market | muito caro |
| out marketion of place | fora de mercadoo |
| out of | por |
