英语的合成词（Compound Words）是将两个或多个单词组合在一起形成一个新的单词，赋予其新的含义。这种构词方式在英语中十分常见，掌握常见的合成词能够有效扩大词汇量，提升阅读理解能力。以下列举了200个常见的英语合成词，并进行分类整理，帮助大家更好地学习和记忆。

一、名词性合成词

1. Airport (air + port)：机场

2. Bathroom (bath + room)：浴室

3. Bedroom (bed + room)：卧室

4. Bookstore (book + store)：书店

5. Boyfriend (boy + friend)：男朋友

6. Girlfriend (girl + friend)：女朋友

7. Breakfast (break + fast)：早餐

8. Football (foot + ball)：足球

9. Homework (home + work)：家庭作业

10. Keyboard (key + board)：键盘

11. Laptop (lap + top)：笔记本电脑

12. Moonlight (moon + light)：月光

13. Newspaper (news + paper)：报纸

14. Raincoat (rain + coat)：雨衣

15. Seafood (sea + food)：海鲜

16. Sunshine (sun + shine)：阳光

17. Toothbrush (tooth + brush)：牙刷

18. Waterfall (water + fall)：瀑布

19. Website (web + site)：网站

20. Weekend (week + end)：周末

21. Headache (head + ache)：头痛

22. Heartbreak (heart + break)：心碎

23. Firefly (fire + fly)：萤火虫

24. Snowflake (snow + flake)：雪花

25. Honeycomb (honey + comb)：蜂窝

26. Landlord (land + lord)：房东

27. Landmark (land + mark)：地标

28. Earthquake (earth + quake)：地震

29. Sunrise (sun + rise)：日出

30. Sunset (sun + set)：日落

31. Haircut (hair + cut)：理发

32. Highway (high + way)：公路

33. Blackboard (black + board)：黑板

34. Toothpaste (tooth + paste)：牙膏

35. Notebook (note + book)：笔记本

36. Fireplace (fire + place)：壁炉

37. Playground (play + ground)：操场

38. Textbook (text + book)：教科书

39. Software (soft + ware)：软件

40. Hardware (hard + ware)：硬件

二、形容词性合成词

41. Good-looking (good + looking)：好看的

42. Well-known (well + known)：著名的

43. Long-term (long + term)：长期的

44. Short-term (short + term)：短期的

45. Part-time (part + time)：兼职的

46. Full-time (full + time)：全职的

47. Open-minded (open + minded)：开明的

48. Easy-going (easy + going)：随和的

49. Hard-working (hard + working)：努力的

50. Self-confident (self + confident)：自信的

51. Self-conscious (self + conscious)：自觉的

52. Home-sick (home + sick)：想家的

53. Color-blind (color + blind)：色盲的

54. Waterproof (water + proof)：防水的

55. Air-conditioned (air + conditioned)：有空调的

56. Handmade (hand + made)：手工制作的

57. World-famous (world + famous)：世界闻名的

58. User-friendly (user + friendly)：用户友好的

59. Tax-free (tax + free)：免税的

60. Duty-free (duty + free)：免税的

61. Second-hand (second + hand)：二手的

62. Last-minute (last + minute)：最后一分钟的

63. State-of-the-art (state + of + the + art)：最先进的

64. Top-secret (top + secret)：绝密的

65. High-quality (high + quality)：高质量的

66. Low-quality (low + quality)：低质量的

67. Far-reaching (far + reaching)：影响深远的

68. Close-knit (close + knit)：关系紧密的

69. Cold-blooded (cold + blooded)：冷血的

70. Warm-hearted (warm + hearted)：热心肠的

71. Kind-hearted (kind + hearted)：善良的

72. Left-handed (left + handed)：左撇子的

73. Right-handed (right + handed)：右撇子的

74. Up-to-date (up + to + date)：最新的

75. Well-behaved (well + behaved)：行为端正的

三、动词性合成词

76. Overcome (over + come)：克服

77. Understand (under + stand)：理解

78. Undergo (under + go)：经历

79. Overlook (over + look)：忽略

80. Overhear (over + hear)：无意中听到

81. Upset (up + set)：使沮丧

82. Outline (out + line)：概述

83. Outbreak (out + break)：爆发

84. Overeat (over + eat)：吃得过多

85. Outgrow (out + grow)：长大超过

86. Underrate (under + rate)：低估

87. Download (down + load)：下载

88. Upload (up + load)：上传

89. Overwrite (over + write)：覆盖

90. Withdraw (with + draw)：撤回

91. Input (in + put)：输入

92. Output (out + put)：输出

93. Highlight (high + light)：突出显示

94. Brainwash (brain + wash)：洗脑

95. Double-check (double + check)：复查

四、副词性合成词

96. Everywhere (every + where)：到处

97. Somewhere (some + where)：某处

98. Anywhere (any + where)：任何地方

99. Nowhere (no + where)：没有地方

100. Sometimes (some + times)：有时

101. Whenever (when + ever)：无论何时

102. Wherever (where + ever)：无论何地

103. However (how + ever)：然而

104. Anyway (any + way)：无论如何

105. Moreover (more + over)：此外

五、其他常见合成词

106. Afternoon (after + noon)：下午

107. Anybody (any + body)：任何人

108. Anything (any + thing)：任何事物

109. Anyone (any + one)：任何人

110. Somehow (some + how)：不知怎么地

111. Someone (some + one)：某人

112. Something (some + thing)：某事物

113. Everybody (every + body)：每个人

114. Everything (every + thing)：每件事

115. Everyone (every + one)：每个人

116. Nobody (no + body)：没有人

117. Nothing (no + thing)：没有任何东西

118. Nowadays (now + a + days)：现今

119. Outside (out + side)：外面

120. Inside (in + side)：里面

121. Overtime (over + time)：加班

122. Underground (under + ground)：地下

123. Overseas (over + seas)：海外

124. Throughout (through + out)：遍及

125. Meanwhile (mean + while)：与此同时

126. Furthermore (further + more)：此外

127. Therefore (there + fore)：因此

128. Whereby (where + by)：借此

129. Hereby (here + by)：特此

130. Thereby (there + by)：因此

131. Hereafter (here + after)：此后

132. Thereafter (there + after)：此后

133. Whereafter (where + after)：此后

134. Herewith (here + with)：随函附上

135. Therewith (there + with)：与此

136. Wherewith (where + with)：以此

137. Incoming (in + coming)：来临的

138. Outgoing (out + going)：外向的

139. Upstairs (up + stairs)：楼上

140. Downstairs (down + stairs)：楼下

141. Bypass (by + pass)：绕过

142. Backup (back + up)：备份

143. Breakdown (break + down)：故障

144. Callback (call + back)：回拨

145. Checkout (check + out)：结账

146. Comeback (come + back)：复出

147. Cutoff (cut + off)：截止

148. Feedback (feed + back)：反馈

149. Follow-up (follow + up)：跟进

150. Handout (hand + out)：讲义

151. Layout (lay + out)：布局

152. Lookout (look + out)：瞭望

153. Makeup (make + up)：化妆

154. Outlook (out + look)：展望

155. Output (out + put)：输出

156. Payoff (pay + off)：回报

157. Setup (set + up)：设置

158. Shutdown (shut + down)：关闭

159. Takeoff (take + off)：起飞

160. Turnout (turn + out)：出席人数

161. Walkthrough (walk + through)：演练

162. Windfall (wind + fall)：意外之财

163. Workload (work + load)：工作量

164. Breakthrough (break + through)：突破

165. Checkbox (check + box)：复选框

166. Cleanup (clean + up)：清理

167. Downloadable (down + load + able)：可下载的

168. Fullscreen (full + screen)：全屏

169. Headstart (head + start)：领先

170. Keyboarding (key + board + ing)：键盘输入

171. Lightsaber (light + saber)：光剑

172. Microchip (micro + chip)：微芯片

173. Offshore (off + shore)：离岸的

174. Popcorn (pop + corn)：爆米花

175. Quickstart (quick + start)：快速启动

176. Readonly (read + only)：只读

177. Screensaver (screen + saver)：屏幕保护程序

178. Troubleshoot (trouble + shoot)：排除故障

179. Videogame (video + game)：视频游戏

180. Wallpaper (wall + paper)：墙纸

181. Workaround (work + around)：变通方法

182. Aftertaste (after + taste)：回味

183. Brainstorm (brain + storm)：头脑风暴

184. Cheesecake (cheese + cake)：芝士蛋糕

185. Doorbell (door + bell)：门铃

186. Earring (ear + ring)：耳环

187. Fingerprint (finger + print)：指纹

188. Grasshopper (grass + hopper)：蚱蜢

189. Hotdog (hot + dog)：热狗

190. Icecream (ice + cream)：冰淇淋

191. Jellyfish (jelly + fish)：水母

192. Knockout (knock + out)：击倒

193. Lifeguard (life + guard)：救生员

194. Milkshake (milk + shake)：奶昔

195. Overtime (over + time)：加班

196. Pancake (pan + cake)：薄饼

197. Rainforest (rain + forest)：雨林

198. Scarecrow (scare + crow)：稻草人

199. Tablecloth (table + cloth)：桌布

200. Underworld (under + world)：黑社会

掌握这些合成词，并在阅读和写作中积极运用，能够有效提升英语水平。 学习合成词并非一蹴而就，需要长期积累和实践。