Related Clues:

• ''Freeze!''
• Bus destination
• ''Enough!''
• Market order
• Get off here
• 'I don't want to hear any more!'
• Instruction at many a corner
• Intersection sign
• Investor's order
• Hang it up
• Word on an octagon
• Proctor's call
• 'Give it a rest!'
• 'That stinks!'
• Sort of sign