Old, because its an adjective
outingobligateobliterateobscureobserveobtainoccupyoccuroffendofferomitopenoperateopineoppressorchestrateordainorderoriginateorganizeoscillateossifyoustoverbookovercomeoverextendoverestimateoverindulgeoverlookoverpoweroverpriceoverprotectoverseeovershootoversleepoverstimulateovertakeoxygenate
what common nouns start with I and end in O
Nouns are not describing words, adjectives are the words that describe noun; people is a noun. Some adjectives starting with O that describe people are:objectiveobliviousobsessedobtuseobviousoldopenopportunisticoriginalorneryostentatiousowlishSome nouns for people that start with O are:oboistoceanographerofficerOlympianopera singeropportunistophthalmologistorganistornithologistorthopedistoutsideroyster farmer
Open,order
5 letter verbs beginning with E, O, N or Y: * enter * offer * order
oppress open offer order organise obtain oversee
obsessing observing
There are quite a few verbs that begin with the letter O. Here are a few examples: open, oil, ooze, offer, order, oust, offering
Examples of abstract nouns that begin with O are:obedienceoccurrenceoccupationoperationopinionorganizationoriginalityoncology
openorderofficiateobtain
Some abstract nouns the begin with the letter O are:oblivionobservationoccasionoddityomenopennessopinionoptimismorganizationoriginalityovationoxymoron
Some examples of regular verbs begiining with O are obey, observe obtain and offend.Some more examples are offer, open, operate and owe.