Mr., Mrs., Ms., Dr., Prof., Gov., Capt., Sen., Rep., etc.
Names
John F. Kennedy (JFK), Martin Luther King, Jr. (MLK), William Shakespeare (Will), etc.
Places
United States (U.S.), Los Angeles (L.A.), Mount Everest (Mt. Everest), etc.
Organizations
United Nations (UN), Central Intelligence Agency (CIA), National Aeronautics and Space Administration (NASA), etc.
Events
World War II, American Revolution, Super Bowl, etc.
Holidays
Christmas, Easter, July 4th, etc.