1. Not allowing air or gas to pass in or out
   - airtight, air-tight

See also: tight

• bore
• bore bit
• bore-hole
• boreal
• boreas
• borecole
• bored
• boredom
• borer
• boresight
• Borges
• Borgia
• boric
• boric acid
• boride
• boring
• boringly
• boringness
• Boris Fyodorovich Godunov
• Boris Godunov
• Boris Karloff
• Boris Leonidovich Pasternak
• Boris Pasternak
• Boris Spassky
• Boris Vasilevich Spassky