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แหล่ง: Collins Free Cobuild Online Dictionary for English Learners

-ดับเบิ้ลคลิกที่คำศัพท์ เพื่อดูคำแปลเป็นภาษาไทย
-และคลิกที่ไอคอนรูปลำโพง เพื่อฟังเสียงอ่าน
-ถ้าไม่เห็นไอคอนรูปลำโพง หรือคำแปล ให้คลิก Show more Web definitions » ที่บรรทัดล่างของหน้า

oak
oar
oasis
oath
oats
obedient
obese
obey
obituary
object
objection
objective
obligation
obligatory
oblige
obliged
obliging
oblique
obliterate
oblivion
oblivious
obnoxious
obscene
obscenity
obscure
observation
observatory
observe
observer
obsess
obsession
obsessive
obsolete
obstacle
obstetrician
obstinate
obstruct
obstruction
obtain
obvious
obviously
occasion
occasional
occult
occupancy
occupant
occupation
occupy
occur
occurrence
ocean
o'clock
October
octopus
odd
oddity
odds
odour
odyssey
of
of course
off
offal
off-balance
off duty
offence
offend
offense
offensive
offer
offering
office
officer
official
off-licence
offline
off-peak
offset
offshoot
offshore
offside
offspring
often
oh
oil
oil paint
oil painting
oil slick
oily
ointment
okay
old
old age
old-fashioned
olive
olive oil
Olympic
Olympic Games
omelette
omen
ominous
omission
omit
on
once
one
one-off
onerous
one's
oneself
one-sided
one-time
one-to-one
one-way
ongoing
onion
online
onlooker
only
on-screen
onset
onslaught
onto
onus
onward
ooze
opaque
open
open
open
open
open-air
open-ended
opener
opening
openly
open-minded
opera
operate
operating theatre
operation
operational
operative
operator
opinion
opinion poll
opium
opponent
opportunist
opportunistic
opportunity
oppose
opposed
opposing
opposite
opposite sex
opposition
oppress
oppressive
opt
optic
optical
optician
optimism
optimistic
optimum
option
optional
optometrist
opulent
opus
or
oral
orange
oratory
orbit
orbital
orchard
orchestra
orchestrate
orchid
ordain
ordeal
order
order
order
orderly
ordinal
ordinance
ordinarily
ordinary
ordination
ore
organ
organic
organisation
organisational
organise
organism
organization
organize
organized
orgasm
orgy
orient
oriental
orientated
orientation
oriented
origin
original
originate
ornament
ornamental
ornate
orphan
orphanage
orthodox
orthodoxy
ostensibly
ostentatious
ostrich
other
otherwise
ought
oughtn't
ounce
our
ours
ourselves
oust
out
outback
outbreak
outburst
outcast
outcome
outcry
outdated
outdo
outdoor
outdoors
outer
outer space
outfit
outflow
outgoing
outgoings
outgrow
outing
outlaw
outlay
outlet
outline
outlive
outlook
outlying
outnumber
out of date
out of work
outpost
output
outrage
outrageous
outright
outset
outside
outsider
outskirts
outspoken
outstanding
outstretched
outstrip
outward
outwards
outweigh
outwit
oval
ovary
ovation
oven
over
over
over
overall
overboard
overcame
overcharge
overcoat
overcome
overcrowded
overcrowding
overdo
overdose
overdraft
overdue
overeat
overestimate
overflow
overgrown
overhang
overhaul
overhead
overheads
overhear
overheat
overhung
overjoyed
overland
overlap
overleaf
overload
overlook
overly
overnight
overpower
overpowering
overran
overrate
override
overrule
overrun
overseas
oversee
overshadow
oversight
oversized
overstate
overt
overtake
overthrow
overtime
overtone
overtook
overture
overturn
overview
overweight
overwhelm
overwhelming
overwork
ovulate
owe
owl
own
owner
ownership
ox
oxygen
oyster
oz
ozone
ozone-friendly
ozone layer