1. Able to expand or be expanded
   - expandable, expansible 
2. (of gases) capable of expansion
   - expandable, expansible, expansile

See also: elastic, expand, expansive

• bar sinister
• bar soap
• bar-room plant
• bar-shaped
• bara brith
• Barack Hussein Obama
• Barack Obama
• Baraka
• baranduki
• Barany
• barathea
• barb
• barbacan
• Barbadian
• Barbados
• barbados cherry
• Barbados dollar
• Barbados gooseberry
• Barbados maidenhair
• Barbados pride
• Barbados-gooseberry vine
• Barbara Hepworth
• Barbara Tuchman
• Barbara Ward
• Barbara Wertheim Tuchman