oar .
oath n-ct.
obedient adj. Subentry: disobedient adj. Subentry: obedience n-uc.
obey vt.
object1 n-ct. 1. n-ct. 2. n-ct. 3. See direct object, indirect object n-ct. 4.
object2 vi, vt(+prep). Subentry: objection n-ct.
objective n-ct. 1. adj. 2. adj. 3.
observation n-uc, n-ct. 1. n-ct. 2. n-ct. 3.
observe vt. 1. vt. 2. vt. 3. vt. 4.
obtain vt.
obvious adj. Subentry: obviously adv.
occasion n-ct. 1. n-ct. 2.
occasional adj. Subentry: occasionally adv.
occupant n-ct. 1. n-ct. 2.
occupation n-ct. 1. n-ct. 2. n-ct. 3.
occupy vt. 1. vt. 2. vt. 3. vt. 4.
occur vi. 1. vi. 2. vi. 3. Subentry: occurrence n-ct. n-ct.
ocean n-ct.
odd adj.
odds n-pl.
of prep. 1. prep. 2. prep. 3. prep. 4.
off prep, adv. 1. adv. 2. prep. 3. prep. 4. prep. 5. adj. 6. adj. 7.
offend .
offense .
offer vt. 1. vt. 2. n-ct. 3.
offering n-ct.
office n-ct. 1. n-ct. 2.
officer n-ct. 1. n-ct. 2.
official adj. 1. n-ct. 2.
offset v.
often adv.
oil n-uc. 1. vt. 2.
old adj. 1. adj. 2. adj. 3. adj. 4. adj. 5.
omission .
omit .
on prep. 1. prep. 2. prep. 3. prep. 4. prep. 5. prep. 6. adv. 7. adj. 8.
once adv. 1. adv. 2. conj. 3.
one det, pron. 1. pron. 2.
ongoing .
only adj. 1. adj. 2.
onto .
open adj. 1. vt. 2. vi. 3. adj. 4. vt. 5. vi. 6. adj. 7. vt. 8. adj. 9. adj. 10.
operate vi. 1. vt. 2. vi. 3. vt. 4. vi. 5.
operation n-uc. 1. n-ct. 2. n-ct. 3. Subentry: in operation phrase.
operator .
opinion n-ct. 1. n-ct. 2.
opportunity n-ct, n-uc.
oppose .
opposite prep, adj, adv. 1. n-ct, adj. 2.
option n-ct.
optional adj.
or conj. 1. conj. 2.
orange adj.
order vt. 1. n-ct. 2. vt. 3. n-ct. 4. vt. 5. n-ct. 6. n-uc. 7. Subentry: in order to phrase.
ordinary adj.
organ n-ct.
organization n-ct. 1. n-uc. 2. n-uc. 3.
organize vt. 1. vt. 2. Subentry: organized adj. adj.
orient vt. 1. vt. 2.
orientation n-uc, n-ct. 1. n-ct. 2. n-ct. 3.
origin n-ct.
originate vi.
ornament .
other det, pron. Subentry: every other phrase. Subentry: others pron.
ought v-aux.
ounce .
out adj, adv. 1. adj, adv. 2. adj, adv. 3. adj, adv. 4.
out of adj/adv + prep. 1. adj/adv + prep. 2. adj/adv + prep. 3. prep. 4. prep. 5.
outcome n-ct.
outline .
output n-uc, n-ct. 1. n-uc, n-ct. 2. n-uc. 3.
outside prep, adv. 1. prep. 2. n-ct. 3.
outward .
over prep, adv. 1. prep. 2. prep. 3. prep. 4. prep. 5. prep. 6. adv. 7. adv. 8. adj. 9.
overall adj. 1. adv. 2.
overcome .
overflow .
overlap v.
overseas adv, adj.
owe .
own vt. 1. adj, pron. 2.
oxymoron .