1. Outside a building
   - outside, outdoors, alfresco

1. Where the air is unconfined
   - outdoors, open air, open

Type of: exterior, outside

• filagree
• filament
• filamentlike
• filamentous
• filar
• filaree
• filaria
• filarial
• filariasis
• filariid
• Filariidae
• filature
• filbert
• filch
• file
• file allocation table
• file away
• file cabinet
• file clerk
• file folder
• file format
• file in
• file out
• file server
• file system