Rzeczownik z ang. na O
- Orange
- Owl
- Oil
- Octopus
- Onion
- Oven
- Oak
- object
- office
- Olive
- Ostrich
- Open
- one
- Ocean
- Order
- October
- Orgasm
- Oat
- oval
- Oyster
- Old
- Ornament
- Out
- Opera
- Over
- Okay
- Only
- Owner
- Owen
- Orphan
- Opening
- Oracle
- Oxygen
- Otter
- Opium
- Orangutan
- Okey
- Other
- Opportunity
- Oatmeal
- Opener
- Oats
- Oman
- Oscar
- Orc
- Outlet
- Orb
- organ
- Orca
- operator
- Orchestra
- Online
- officer
- obstacle
- Our
- Organization
- Opal
- Older
- Oreo
- ore
- olives
- Outside
- olive oil
- Ogre
- offer
- Odd
- Obvious
- organism
- Ordinary
- orange juice
- Option
- opposite
- Operation
- Olivia
- Okno
- Ohio
- o'block
- Oak wood
- own
- Overthinking
- Omlet
- Ombre
- oh my god
- Often
- ocular
Kata-kata dalam daftar Rzeczownik z ang. na O berasal dari pemain permainan kata ABC Lima Dasar.