o开头的英语单词.docx

o开头的英语单词1800字
1. oak
2. oath
3. oasis
4. obedience
5. obedient
6. objection
7. objective
8. obligation
9. oblige
10. oblique
11. oblivion
12. obscure
13. observation
14. observe
15. obstacle
16. obtain
17. obvious
18. occasion
19. occupy
20. occur
21. ocean
22. odd
23. odds
24. odor
25. offence
26. offend
27. offer
28. office
29. officer
30. official
31. often
32. oil
33. old
34. olive
35. on
36. once
37. one
38. onion
39. only
40. onward
41. open
42. operate
43. operation
44. opinion
45. opponent
46. opportunity
47. oppose
48. opposite
49. oppress
50. option
51. optional
52. or
53. oral
54. orange
55. orbit
56. orchestra
57. order
58. ordinary
59. organ
60. organic
61. organization
62. organize
63. origin
64. original
65. ornament
66. orphan
67. other
68. ought
69. our
70. outcome
71. outdoor
72. outlaw
73. outline
74. output
75. outside
76. outstanding
77. oven
78. over
79. overall
80. overcome
81. overdo
82. overflow
83. overhead
84. overlap
85. overseas
86. overtime
87. overturn
88. overwhelm
89. own
90. owner
91. oxygen
92. oyster
93. oakum
94. oasislike
95. obbligato
96. oblast
97. oblation
98. obligee
99. obligor
100. obscenity
101. obscureness
102. obsessions
103. obstetric
104. obstinacy
105. obstinate
106. obstructs
107. obtainable
108. obtuse
109. obviously
110. occasione
111. occupant
112. occupation
113. oddness
114. odious
115. oedema
116. offensiveness
117. offertory
118. officerlike
119. officialism
120. officinal
121. oftentimes
122. ogival
123. oldness
124. oleander
125. oleaster
126. olfaction
127. oligarchic
128. ombudsman
129. omega
130. omicron
131. omnibus
132. omnipotent
133. omniscient
134. omnivore
135. ondometer
136. oneirology
137. one-upmanship
138. oniony
139. onomastics
140. onrush
141. onset
142. oophorectomy
143. ophthalmic
144. ophthalmoscope
145. opioid
146. opportunitylike
147. opposable
148. oppositions
149. oppressor
150. opprobrium
151. optative
152. optic
153. optimist
154. optimization
155. optionality
156. oratorical
157. orcas
158. orchidaceous
159. ordinariness
160. orderly
161. ordnance
162. orexis
163. orgasmic
164. oriental
165. originality
166. ornamented
167. ornithology
168. orphanage
169. orthodontic
170. orthodox
171. orthopedic
172. oscillator
173. osteoarthritic
174. osteoporotic
175. ostracism
176. otalgia
177. otology
178. ovenbird
179. overage
180. overbearingly