Related Clues:

• ( ), informally
• This clue has two of them (for short)
• ( ), briefly
• ) and (
• Curved brackets, for short
• Company of two?
• They're just above O
• Alternatives to commas, informally
• ( ) marks, for short
• ) and (, for short
• Story arcs?
• What "(" and ")" are, for short
• Paired symbols, for short