Obedient, obese, oblique, obscure observant, obsolete and obvious are adjectives that begin with the letter O. Additional adjectives include official, old, Olympic, open, operable, oriental, outback and outrageous.
Lions can be described as overpowering. The word starts with the letter o.
thought = noun; thoughtful = adj; thoughtless= adj, thinking = adj, thinker = noun.
Overalls
ottoman
Orang-utan is a type of rainforest animal that starts with an 'o' at the start of it's name.
z= zany x= ...
Xanthous (adj.) meaning having a light brown skin.
bonus -a, -um (adj. meaning good) perhaps?
Do you mean what Norse god starts with o? Odin is a Norse go that starts with O.
coeval adj. coevally adv. coexistent adj. coincidental adj. coinstantaneous adj. concomitant adj. concurrent adj. concurrently adv. contemporaneous adj. contemporaneously adv. at once gleichzeitig at the same time simultaneous adj. simultaneously adv.
apace adv. [poet] brisk adj. briskly adv. expeditious adj. expeditiously adv. mobile adj. nippy adj. (Brit.) [sl.] prompt adj. quick adj. quickly adv. rapid adj. rapidly adv. slippy adj. spanking adj. speedily adv. speedy adj. swift adj. swiftly adv.
Omoo is the Melville tale that starts with O.
somnolent - adj. sleepy or drowsy
rude n.m.,f.1. boor n.2. brute n.rude adj.1. blunt adj.2. boorish adj.3. brusque adj.4. crude adj.5. rude adj.rude (adj.]brutal adj.
A machine that starts with O is an oscillating fan.
an octopus is a simple machine that starts with a o
Oman is the only country that starts with O.