FYIphr.adj.n.

1941 Washington Post 27 Apr. 5/3 ‘FYI’ titles this new program for the Mutual network... The letters mean ‘For Your Information’—a series detailing how the United States is combating sabotage and espionage.

1974 L. Niven & J. Pournelle Mote in God's Eye iv. 51 FYI no known human colonies at apparent origin of intruder.

1993 Herald Sun (Melbourne) (Nexis) 11 May We've already finished last in the Sheffield Shield this year (f.y.i., that's cricket).

2005 Observer (Nexis) 8 May 5 FYI, I am not a goth.

1973 T. Crouse Boys on Bus i. i. 9 It's sent in confidential FYI memos or just over the phone.

1989 Public Relations Jrnl. (Nexis) May 29 A brief FYI note highlighting an interesting article.., or a memo outlining the juiciest findings of a market survey are ways to educate your client.

1993 N.Y. Times (Nexis) 6 Feb. i. 35 A member of his staff found an ‘F.Y.I.’ message from the health department pointing to the apparent link.

2001 Cosmopolitan Dec. 94/2 Maintain an informative, FYI tone to avoid sounding like a braggart, saying something like ‘The project came in under budget due to these efforts’.

1986 Mod. Office Technol. June 120/3 Everything went on the voice mailbox: notes of things to do, phone messages, FYIs from colleagues, and the like.

1992 Globe & Mail (Toronto) 15 Dec. a21/3 There is an FYI attached.

2004 Columbus (Ohio) Dispatch (Nexis) 21 May 12 c He resembles a nine-to-fiver who has had it with the ‘high-speed access’, Post-it world of FYIs and ‘touching base’.