"Here are the relevant facts ...": Abbr

• Message starter, for short
• Memo-opening letters
• Letters denoting "so you know"
• Letters at the top of an interoffice memo
• "Just so you know ...": Abbr
• "Thought you should know," on a memo
• "Read this"
• Memo starter
• "Just throwing it out there"

Wikipedia Word definitions in Wikipedia
FYI is a common abbreviation of " for your information ". "FYI" is commonly used in e-mail, instant as on messaging or memo and messages, typically in the message subject, to flag the message as an informational message, with the intent to communicate to ...