Can you think of any familiar abbreviations or acronyms of at least three letters that can be repurposed to form a different abbreviation or acronym? The same letters can be unchanged, re-arranged, off by one letter, or they can have one additional letter.

(Possible) Answers:

Same letters - unchanged:

FDR - Franklin Delano Roosevelt

FRD - Flight Data Recorder*

PSA - Public Service Announcement

PSA - Prostate-specific Antigen

 

PDA - Public Display of Affection

PDA - Personal Digital Assistant

 

Same letters - re-arranged:

DAR - Daughters of the American Revolution

RDA - Recommended Daily Allowance

 

MLB - Major League Baseball

BLM - Bureau of Land Management

 

TMI - Too Much Information

MIT - Massachusetts Institute of Technology

 

LSD - An hallucinogenic drug

LDS - Latter Day Saints

 

DUI - Driving under the influence

IUD - Intrauterine device 

MBA - Masters of Business Administration

ABM - Anti-ballistic Missile

TSP - Teaspoon

STP -  Auto engine additive

MIA - Missing In Action

AIM - American Indian Movement

 

VCR - Video Cassette Recorder

CVR - Cockpit Voice Recorder*

 

DINK - Double Income No Kids

KIND - Kids in Nature's Defense

ACLU - American Civil Liberties Union

UCLA - University of California at Los Angeles

 

One letter off: 

IRA - Individual Retirement Account

IRS - Internal Revenue Service

 

BYOB - Bring your own bottle

MYOB - Mind your own business

 

MYOB - Mind you own business 

BMOC - Big Man On Campus

 

Add a letter:

UPS - United Parcel Service

USPS - United States Postal Service

 

ASAP - As Soon As Possible

ASCAP -American Society of Composers, Authors, and Publishers

SPCA - Society for the Prevention of Cruelty to Animals

ASCAP - American Society of Composers, Authors, and Publishers

 

PSA - Public Service Announcement

ASAP - As Soon As Possible 

*The CVR and the FDR make up the Black Box (which is really orange) that is carried on every commercial aircraft.

 

Credit:
Joseph Appel