ABBREVIATION MEETS DYSLEXIA
Credit : LA Times Crossword
October 21, 2011
Don Gagliardo and C.C. Burnikel

What do the following abbreviations stand for, and why are they unusual?

TP
BC
RH (Rh)

Answer:

Each abbreviation is unusual because it can be reversed to form another abbreviation:

TP - Toilet Paper
PT - Patrol Torpedo (PT BOAT)

BC - Before Christ
CB - Citizens' Band (radios)

RH - Rhesus Factor (blood immunity)
HR - Human Resources

Note: See also ABBREVIATIONS post for April 1, 2013