Related Clues:

• Response to a doorbell
• Frequent stage direction
• Letter from Pharos
• Punch in
• ''Abandon hope, all ye who ___ here''
• Part of PBK
• Input, as data
• ''Come in!''
• Rectangular computer key
• Honor-society letter
• Step onstage
• Chi follows it
• Frequently used key
• Walk through the door
• Walk right in