atrium /äˈ or āˈtri-əm or -ŭm/

1. The entrance hall or chief apartment of an ancient Roman house
2. A church forecourt or vestibule
3. A central courtyard (architecture)
4. A cavity or entrance (zoology and anatomy)
5. Specif either of the two upper cavities of the heart into which blood passes from the veins

• showjumping
• showjumpings
• showjumps
• showman
• showmanly
• showmanship
• showmanships
• showmen
• shown
• show off
• show-off
• show-offs
• show of hands
• show one's cards
• show one's face
• show one's hand
• show one's head
• show one's ivories
• show one's paces
• showpiece
• showpieces
• showplace
• showplaces
• show ponies
• show pony