- In the open air
- Open air
- Open-air
- Open-air (dining)
- Outdoor
- Outdoors
- Outdoors (Italian)
- Alfresco
- One pair thrown outside
- Out-of-doors state
- Outdoor opera in ruins
- Outdoors
- Park (concert)
- Unenclosed space outside
- Cooking outdoors
- of Grill
- Cooking outdoors
- of Barbecue