Some common nouns that start with O are:
oak
oar
oasis
oast
oat
oath
oatmeal
obedience
obelisk
obelus
obi
object
objection
objective
obligation
obloquy
obo
observation
obsession
obstacle
occult
ocean
ocelot
ochre
octagon
octane
octopus
octuplet
oddball
odeon
odor
odour
odyssey
offer
office
official
oil
okapi (antelope)
olingo
olive
olm
omega
omelet
omen
onager
onion
opal
opening
operation
operator
opiate
opinion
opossum
optical illusion
option
orangutan
orbit
orca
orchard
orchestras
order
organ
organization
orifice
oriole
ornament
oropendola
oryx
osprey
ostracod
ostrich
otter
ottoman
oval
oven
ovenbird
owl
ox, oxen
oxpecker
oyster
ozark big-eared bat
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
Some abstract nouns the begin with the letter O are:oblivionobservationoccasionoddityomenopennessopinionoptimismorganizationoriginalityovationoxymoron
Some nouns that start with A are:acheacrobatadditionageagentaggressionallotmentamberamplifieranchorangelangerangleanvilappleargumentarrivalasparagusassailantassociationaugeravengeravenueaverageawl
All Esperanto nouns end with the vowel "o".
Some nouns that start with 'ca' are:cabcakeCadillaccameracanecapcapecarcarbinecarbohydratecarpcarriagecartcartilagecartoncartridgecagecampcanecarrotcasecastcatcavecavern
I will list some nouns that start with U:udderukuleleulcerultimatumunanimityumberumbrellaumpireuniformunanimityuniverseupdateupperUranusurchinurgencyurinalurnuseutopia
Examples of collective nouns that start with O are:an obscurity of poetsan obesiance of servantsan observance of hermitsan obstinacy of buffaloan optimism of youthsan orchestra of cricketsan orchestra of musiciansan order of waitersan ostentation of peacocks
Some nouns that start with A are:apple,avocado,armarmadilloarchArchiealleyallergyAmyarmyanvilangel
Examples of nouns that start with K and S are:kangarooKarenkayakkelpKentuckyketchupkindnesskingkitchenkneeknowledgekoalasadnesssaladsealshirtsilksinkskysorrowSpamstarswordspy
Some common nouns that start with 'i' are:ibexibisiceiconideaidentityidolimaginationimpinchinformationinkinninsightinspirationinventioninundationionirisironironyislandisolationissueisthmusitem
The nouns are whistle, start, and practice.