Related Clues:

• Galley marking
• Editor's "let it be"
• Proofreader's direction
• Mark for omission
• Order in?
• Order out?
• Proofreader's marking
• Annotation in proofreading
• X out
• Editorial strike-out
• Margin mark
• Undo a deletion
• Marginal mark
• Proof-reader's notation
• Leave in, to a proofreader