This is because most fraternities and sororities are named after a series of Greek letters, such as Alpha Delta Pi or Sigma Phi.

VOA: special.2009.09.25

In this way, the letters would be carried between California and Missouri.

VOA: special.2009.05.28

His letters from this time on are often full of talk about what he must do to support his family and to continue the repairs to his house.

VOA: special.2010.01.03

The letters of this code tell what qualities the bacterium contains.

VOA: special.2010.07.20

He explained his position many times in speeches,debates and letters, including this one written in eighteen fifty-eight: I have made it equally plain that I think the negro is included in the word "men" used in the Declaration of Independence.

VOA: special.2009.02.09

The strategy includes an effort to draw attention to recent rate increases imposed on Americans by major health insurance companies, and the impact this has had on people the president has heard from directly in letters he reads each day.

VOA: standard.2010.03.10