| 1-29 of 29Flashcard sets with a 'arduous' term meaning 'hard; difficult' |
| # | Title | Terms | Date |
| 1 | Word Smart Group (1-20)by dunguyen1985 | 165 terms | April 16, 2008 |
| 2 | 134by motatoe92 | 134 terms | October 16, 2008 |
| 3 | word smart cumulativeby liamy | 335 terms | November 2, 2009 |
| 4 | Vocab Week 5 American Hebrew Academyby geetarplaya | 19 terms | September 23, 2008 |
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| 5 | Word Smart Iby dunguyen1985 | 825 terms | August 4, 2008 |
| 6 | WordSmart 3by mirandan | 38 terms | September 11, 2009 |
| 7 | Ms. Silver's SAT Vocabby kbl27 | 155 terms | October 8, 2008 |
| 8 | The Harlem Renaissance (Cluster 1)by gpozzi | 30 terms | October 15, 2009 |
| 9 | word smart Aby 21119DongWoo | 9 terms | August 2, 2008 |
| 10 | Word Smart Quiz 3by etetet103 | 41 terms | September 13, 2009 |
| 11 | A-D word smartby krnangelkitty | 287 terms | July 28, 2008 |
| 12 | Vocab 9/25by elpatodominante | 19 terms | September 23, 2008 |
| 13 | vocab. 7.22by isaackim7214 | 40 terms | July 22, 2009 |
| 14 | Vocab 3/4by sk3ll3y | 22 terms | March 3, 2009 |
| 15 | Word Smart I - Aby cellojello | 102 terms | July 6, 2009 |
| 16 | WS 3by mypupsrulz12 | 41 terms | September 11, 2009 |
| 17 | Word Smart Quick Quiz #11by andydavison123 | 9 terms | June 13, 2009 |
| 18 | Vocabulary I: #3by ozziegirl | 10 terms | June 3, 2009 |
| 19 | MIDTERM EXAMby sjim | 634 terms | August 7, 2008 |
| 20 | GRE 3by aquapanda21 | 165 terms | May 18, 2008 |
| 21 | midterm vocabularyby chrissyroseg | 50 terms | January 16, 2009 |
| 22 | Wordsmart 3by wkraus94 | 41 terms | September 10, 2009 |
| 23 | Word Smart (a-e)by colleendeborah | 330 terms | April 30, 2008 |
| 24 | AHA spelling list 5by bhass | 19 terms | September 21, 2008 |
| 25 | Loe jr. SAT week 11by kloe | 9 terms | August 31, 2009 |
| 26 | words1by z_arab64 | 468 terms | July 29, 2008 |
| 27 | SAT VOCABS (A)by aci1130 | 82 terms | April 15, 2007 |
| 28 | Word Smart 11by Jazebell21 | 9 terms | November 13, 2009 |
| 29 | A-I Review word smartby krnangelkitty | 468 terms | July 3, 2008 |