| 1. 劍橋英英字典 must must |
2. 雅虎奇摩字典 must |
3. 韋氏線上字典 must |
4. 朗文英英字典 must |
| 5. Google字典 must |
6. icibt寫作句庫 must |
7. 美國遺產字典 must |
8. wiktionary must |
| 9. Wikipedia must |
10. Howstuffworks must |
11. Urban Dictionary must |
12. EarthSky must |
| 13. answers.com must |
14. WordReference.com must |
15. 英漢詞典 must |
16. yourdictionary.com must |
| 17. Webster Dictionary must |
18. onelook.com must |
19. W3dictionary must |
20. Medlineplus dictionary must |
| 21. Inogolo(名字發音) must |
22. Forvo(發音) must |
23. Quotations(語錄) must語錄 |
24. 韋氏線上學生字典 must |
| 25. 韋氏線上學生詞典 must |
26. 韋氏線上押韻字典 must |
27. Thesaurus.net同義字典 must |
28. Macmillan Dictionary must |
| 29. Macmillan Thesaurus must |
30. getwords.com must |
31. bettermedicine.com must |
32. Collins must |
| 33. Oxford Dictionary must |
34. Oxford ALD must |
35. ozdic.com must |
36. Oxford American must |
| 37. Stanford Encyclopedia of Philosophy must |
38. 圖片搜尋 must |
39. PDF搜尋 must |
40. SWF搜尋 must |
| 41. English-cobuild must |
42. Babylon English must |
43. Babylon Search must |
44. AlphaDictionary must |
| 45. 線上英漢字典 must |
46. Wordnik must |
47. 同義與反義字 must |
48. howjsay . com must |
| 49. Medical Dictionary must |
50. Your Dictionary Sentences must |
51. PronounceHow must |
52. Dictionary Reverso must |
| 53. Memidex(發音) must |
54. dict.cc must |
55. Name Pronunciation must |
56. Vocabulary.com must |
| 57. WebMD must |
58. 海詞 must |
59. 新浪香港 must |
60. Linguee must |
| 61. VoiceTube must |
62. 大詞典 must |
63. sentencedict.com must |
64. definition-of.com must |
| 65. YouTube must |
66. 詞都 must |
67. 押韻詞典 must |
68. RhymeZone must |
| 69. RhymeZone must |
70. 漢語詞典 must |
71. Pronounce Names must |
72. Youglish must |
| 73. 查文法 must |
74. Purdue OWL must |
75. Reference.com must |
76. Ozdic.com 語詞搭配 must |
| 77. OXFORD 語詞搭配 must |
78. YARN movie clips must |
79. Ted.com must |
80. thesaurus.plus must |
| 81. cliffsnotes must |
82. sparknotes must |
83. Describing Words must |
84. Ludwig must |
| 85. study.com must |
86. webmd.com must |
87. word hippo(adj) must |
88. word hippo(noun) must |
| 89. word hippo(verb) must |
90. word hippo(adv) must |
91. word hippo(singular) must |
92. word hippo(pl.) must |