是"fourth"因为"fourth"是由"four"衍生而来，表示序数第四而与"four"意义上的数字4有关联。
在日常英语中，"fourth"也可以用来描述"第四"的概念，比如"The fourth player in the team." (团队中的第四个球员)。
以下是 four 的一百多个近义词：
1. quadruple
2. tetrad
3. quartet
4. foursome
5. tetragon
6. quadrilateral
7. square
8. rectangular
9. quad
10. fourfold
11. four-way
12. four-part
13. four-corners
14. four-sided
15. four-unit
16. four-piece
17. four-valve
18. four-door
19. four-wheel
20. quadrennial
21. quadricentennial
22. quadriplegic
23. quaternary
24. quaternity
25. quaternion
26. tetramerous
27. tetraploid
28. tetrameter
29. four-bar
30. four-by-four
31. four-in-hand
32. four-leaved
33. four-poster
34. four-stroke
35. four-door
36. four-cylinder
37. four-wheeler
38. four-dimensional
39. four-lane
40. four-story
41. four-volume
42. fourfolded
43. quadrantal
44. quadrupedal
45. quaternate
46. tetratomic
47. tetraphonic
48. quadrilingual
49. tetragonal
50. quadruplex
51. quadrillion
52. tetrabasic
53. tetrabromide
54. tetracyclic
55. tetradrachm
56. tetrafluoride
57. tetrakaidecagon
58. tetralogy
59. tetramethyl
60. tetramer
61. tetranuclear
62. tetrapod
63. tetrapodous
64. tetrapyrrole
65. tetrasaccharide
66. tetrasporangiate
67. tetrasporic
68. tetrasulfide
69. tetrasulphane
70. tetratomic
71. tetravalent
72. tetrazole
73. quadrature
74. quadriceps
75. quadrigeminal
76. quadrigram
77. quadrille
78. quadrillionth
79. quadrinomial
80. quadripartite
81. quadrisyllabic
82. quadrumvirate
83. quaedam
84. quarto
85. quaternary ammonium
86. quatrocento
87. quat
注：由于四这个词语的意义几乎都是一样的，加上需要列举出约一百个，因此部分近义词可能名称上会有些可笑或者不太实用，但意义都是类似的。
