3000 TM O

O

obey – v

object – n, v

obtain – v

obvious – adj

occasion – n

occasionally – adv

ocean – n

o’clock – adv

of – prep

off – adv, prep

offence – n

offend – v

offensive – adj

offer – v, n

office – n

officer – n

official – adj

officially – adv

often – adv

oil – n

old – adj

old age – n

old-fashioned – adj

on – prep, adv

once – adv, conj

one – number, det, pron

     one after  another

onion – n

only – adj, adv

onto – prep

open – adj, v

   open air

opening – n

openly – adv

opera – n

operate – v

operation – n

opinion – n

opponent – n

opportunity – n

oppose – v

opposed to

opposite – adj, n, prep

opposition – n

or – conj

orange – n, adj

orchestra – n

order – n, v

    in order to

ordinary – adj

organ – n

organization – n

organize – v

origin – n

original – adj

originally – adv

ornament – n

other – adj, pron

ought to – modal v

our – det

ours – pron

ourselves – pron

out (of) – adv, prep

outdoor – adj

outdoors – adv

outer – adj

outline – n

outside – n, adj, prep, adv

outwards – adv

oven – n

over – adv, prep

owe – v

owner – n