| 1-11 of 11Flashcard sets with a 'arduous' term meaning 'extremely difficult' |
| # | Title | Terms | Date |
| 1 | Week Tenby tshing45 | 21 terms | April 4, 2009 |
| 2 | Johnson 1-10by angelagu01 | 199 terms | June 16, 2009 |
| 3 | pg. 5 vocabby windchill27 | 33 terms | July 27, 2009 |
| 4 | SAT Flip-O-Matic 3by monsoon0203 | 10 terms | July 14, 2009 |
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| 5 | Frankenstine Vocab #7by lovable1238 | 25 terms | April 28, 2009 |
| 6 | PSAT Vocabulary- Aby socheng | 38 terms | October 2, 2008 |
| 7 | Gossamer List #2by MrHalapeno | 10 terms | November 23, 2009 |
| 8 | GREby soroosh | 199 terms | October 21, 2008 |
| 9 | PSAT words Aby meghaggarwal93 | 87 terms | July 5, 2009 |
| 10 | SAT vocab: Set C(part 4)by tanimarcus | 50 terms | October 31, 2009 |
| 11 | Simon's Saga 17by SATVOCAB | 25 terms | June 19, 2008 |