Rzeczownik z ang. na O
- Orange
- Owl
- Oil
- Octopus
- Onion
- Oak
- Oven
- object
- Open
- office
- Olive
- Ostrich
- one
- Order
- Ocean
- Orgasm
- October
- Oat
- oval
- Oyster
- Old
- Out
- Opera
- Okay
- only
- Owen
- Over
- Orphan
- Ornament
- Okey
- Other
- Oracle
- Opening
- Owner
- Opportunity
- opium
- Orangutan
- Opener
- Oman
- Oatmeal
- Outlet
- Orc
- Oxygen
- organ
- Oral
- Oats
- Otter
- orca
- Online
- officer
- Our
- Oscar
- Opal
- Organization
- Oreo
- Orchestra
- Older
- olives
- offer
- Odd
- Outside
- ore
- Orb
- orange juice
- Option
- opposite
- operator
- Olivia
- olive oil
- Okno
- Obvious
- obstacle
- Oak wood
- own
- Overthinking
- Ordinary
- Omlet
- oh my god
- ocular
The words in the list Rzeczownik z ang. na O come from players of the word game City, Country, River.