| 2020-11-29 | Hydrocarbon suffixes |
| 2020-07-25 | Spanish letters with (or without) tildes |
| 2016-11-12 | 6'11" Kanter of the N.B.A. |
| 2015-08-22 | The Spanish word "nación" has two |
| 2015-03-21 | Chemical endings |
| 2012-05-20 | Chemical endings |
| 2011-08-24 | Hydrocarbon suffixes |
| 2011-01-18 | Hydrocarbon suffixes |
| 2010-07-24 | Hydrocarbon endings |
| 2010-06-17 | Hydrocarbon suffixes |
| 2010-04-10 | Chemical endings |
| 2009-04-05 | Chemical suffixes |
| 2009-02-24 | Hydrocarbon suffixes |
| 2008-12-26 | Hydrocarbon endings |
| 2008-07-09 | Chemical endings |
| 2008-02-23 | Chemical endings |
| 2008-01-22 | Hydrocarbon suffixes |
| 2006-12-26 | Hydrocarbon suffixes |
| 2004-05-04 | Chemical endings |
| 2004-01-02 | Hydrocarbon endings |
| 2003-02-07 | Hydrocarbon suffixes |
| 2002-08-28 | Hydrocarbon suffixes |
| 2001-09-22 | Chemical endings |
| 2000-02-28 | Endings for hydrocarbons |
| 1998-06-15 | Chemical endings |
| 1997-03-09 | Hydrocarbon suffixes |
| 1995-05-27 | Ethyl endings |
| 1994-10-23 | Chemical endings |
| 1994-10-19 | Chemical suffixes |
| 1994-04-24 | Chemical endings |