Related Clues:

• Link letters?
• Conjunction
• ''Go on ...''
• Inclusive conjunction
• Michigan's --- Canals
• Oft-used coupler
• Jack of ''Barney Miller''
• Popular connector
• Frequent joiner
• Connector of the quip
• Conversational prompt
• Lightning-thunder connector
• So-so link?
• It often comes between partners
• Not only that