1. A numbered compartment in a post office where mail is put to be called for
   - Post-Office box, PO Box, call box, letter box [Brit]

Type of: compartment

Encyclopedia: POB

• shuttlecock fern
• shwa
• shy
• shy away from
• shy person
• shylock
• shyly
• shyness
• shyster
• si
• SI system
• SI unit
• sial
• sialadenitis
• Sialia
• Sialidae
• Sialis
• Sialis lutaria
• sialolith
• Siam
• siamang
• siamese
• Siamese cat
• siamese connection
• Siamese twin