o开头的英语单词

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.os