How to spell SFR correctly?

The misspelling "sfr" could possibly be corrected to "surf", "sift", "suffer" or "softer". It is important to double-check for spelling errors to avoid confusion and miscommunication in written communication.

• AFR The AFR rate for the patient was within normal limits.
• fr
• MFR I'm going to meet my friend at MFR.
• SF I always feel comfortable reading SF novels.
• sir Excuse me, sir, do you have a moment?
• SLR I love taking pictures with my SLR camera.

Intertubing

• antedating
• entertain
• entertainer
• entertaining
• inditing
• inner-tubing
• intertwine
• interurban
• intuiting
• undertaking