Related Clues:

• Number component
• Pick out of a lineup
• Glove part
• Number unit
• Number part
• 1, for one
• 'Far out, man!'
• One or two, e.g.
• 1, 2, or 3
• Single digit
• PIN part
• Toe or two
• Thumb, e.g.
• "Take note, man"
• ZIP code part