Related Clues:

• 'Come in'
• Join the student body
• Computer key with an arrow on it
• Decide to compete
• Shift-key neighbor
• Tall key on a keypad, often
• Inviting door sign
• Put in data
• Key above Shift
• Carriage return, these days
• Put into the record
• Opposite of exit
• Maze sign
• "Come on in!"
• Sign up, variantly