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คำศัพท์

1

obedient

2

obese

3

obey

4

objection

5

objective

6

obligatory

7

obscure

8

observe

9

obstacle

10

obstruct

11

obstinate

12

obsolete

13

obtain

14

obtrude

15

obvious

16

occasion

17

occasionally

18

occupation

19

occupy

20

occurrence

21

odious

22

odor

23

offer

24

official

25

olive

26

ominous

27

omit

28

omniscient

29

once

30

operate

31

opinion

32

oppose

33

optimism

34

option

35

opulence

36

oral

37

ordinary

38

organ

39

organic

40

organize

41

origin

42

original

43

ornate

44

ostrich

45

otter

46

otherwise

47

ought

48

outbreak

49

outcome

50

outstanding

51

overall

52

overcome

53

overture

54

owe

55

owl

56

owner