| \No | English sources                                                           | References |
+-----+---------------------------------------------------------------------------+----------+
|  1) | \Dict[Webster1913]{Webster's Revised Unabridged Dictionary}               |    4,088 |
|  2) | \Dict[Century1911]{The Century Dictionary and Cyclopedia}                 |    2,862 |
|  3) | \Dict[Webmineral.com]{Mineralogy Database}                                |    2,645 |
|  4) | \Dict[Wikipedia]{Wikipedia}                                               |    2,456 |
|  5) | \Dict{Oxford English Dictionary} (multiple editions)                      |    1,633 |
|  6) | \Dict[OneLook]{OneLook Dictionary Search}                                 |    1,532 |
|  7) | \Dict[Dictionary.com]{Dictionary.com}                                     |      373 |
|  8) | \Dict[Harper2001]{Online Etymology Dictionary}                            |      246 |
|  9) | \Dict[AHD4]{The American Heritage Dictionary of the English Language}     |      146 |
| 10) | \Dict[W7]{Webster's Seventh New Collegiate Dictionary}                    |      122 |
| 11) | \Dict[ADEL]{American Dictionary of the English Language}                  |      120 |
| 12) | \Dict[RHWU]{Random House Webster's Unabridged Dictionary}                 |      108 |
| 13) | \Dict[Taber93]{Taber's Encyclopedic Medical Dictionary}                   |       88 |
| 14) | \Dict[Graham1987]{The New Geordie Dictionary}                             |       84 |
| 15) | \Dict[CanOD2]{Canadian Oxford Dictionary}                                 |       76 |
| \No | German sources                                                            | References |
+-----+---------------------------------------------------------------------------+----------+
|  1) | \Dict[Wikipedia]{Wikipedia}                                               |   48,732 |
|  2) | \Dict[Wortschatz]{Wortschatz-Lexikon}                                     |   47,907 |
|  3) | \Dict[DWDS]{Digitales Wörterbuch der deutschen Sprache}                   |   45,123 |
|  4) | \Dict[Canoo]{canoonet}                                                    |   43,864 |
|  5) | \Dict[FreeDictionary]{TheFreeDictionary.com}                              |   18,936 |
|  6) | \Dict[DWB1]{Deutsches Wörterbuch}                                         |   14,021 |
|  7) | \Dict[Duden:DO]{Duden online}                                             |   13,653 |
|  8) | \Dict{Duden: Deutsches Universalwörterbuch} (multiple editions)           |    2,859 |
|  9) | \Dict{Duden: Die deutsche Rechtschreibung} (multiple editions)            |    2,089 |
| 10) | \Dict{Duden: Das große Fremdwörterbuch} (multiple editions)               |    1,249 |
| 11) | \Dict[wissen.de]{wissen.de}                                               |    1,006 |
| 12) | \Dict[Metzler3]{Metzler-Lexikon Sprache}                                  |    1,004 |
| 13) | \Dict[OWID]{OWID}                                                         |      930 |
| 14) | \Dict[Bussmann3]{Lexikon der Sprachwissenschaft}                          |      743 |
| 15) | \Dict[Herder1949]{Der Neue Herder}                                        |      688 |
| 16) | \Dict[Brockhaus20]{Brockhaus -- Die Enzyklopädie in 24 Bänden}            |      654 |
| 17) | \Dict[GWb]{Goethe-Wörterbuch}                                             |      563 |
| 18) | \Dict[redensarten-index.de]{Redensarten-Index}                            |      541 |
| 19) | \Dict[Burkart1993]{Neues Lexikon der Vornamen}                            |      533 |
| 20) | \Dict[Koblischke1980]{Großes Abkürzungsbuch}                              |      531 |
