Letters on a memo

• "Thought you should know," on a memo
• 'By the way,' on a memo
• Letters at the top of an interoffice memo
• Memo-opening letters
• Header on many a forwarded email
• "Just like to mention this," initially
• "Just saying" letters
• Heads-up letters
• Memo ltrs

Wikipedia Word definitions in Wikipedia
FYI (stylized as fyi, ) is an American digital cable and satellite television network that is owned by A&E Networks , a joint venture between the Disney–ABC Television Group subsidiary of The Walt Disney Company and the Hearst Corporation (which each own ...