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3000 Common English Words – O

o'clock
object
objective
observation
observe
obtain
obvious
obviously
occasion
occasionally
occupied
occur
ocean
october
odd

oddly
of
off
offence
offend
offensive
offer
office
officer
official
officially
often
oil
ok (okay)
old

old-fashioned
once
onion
only
onto
open
opening
openly
operate
opinion
opponent
opportunity
oppose
opposite
opposition

option
orange
order
ordinary
organization
organize
organized
origin
original
originally
other
otherwise
our
ours
ourselves

out
outdoor
outdoors
outer
outline
outside
outstanding
oven
over
overall
overcome
owe
own
owner

  • 3000 Most Common Words - List
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3000 Common English Words – W

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3000 Common English Words – U

3000 Common English Words – T

3000 Common English Words – S

3000 Common English Words – R

3000 Common English Words – Q

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