Related Clues:

• Punctuation marks
• Ratio symbols
• They precede many lists
• Two-pointers?
•     Ratio marks
• Two-dot punctuation marks
• Analogy punctuators
• Vertical umlauts
• Dash relatives
• Sideways umlauts?
• Digital hour/minute dividers
• Parts of some emoticons
• Parts of analogies
• : : :
• List preceders