Rzeczownik z ang. na O
- Orange
- Owl
- Oil
- Octopus
- Onion
- Oven
- Oak
- office
- object
- Olive
- Ostrich
- one
- Order
- Ocean
- October
- Orgasm
- Oat
- Oval
- Oyster
- Ornament
- Opera
- Out
- Okay
- only
- Owner
- Orphan
- Oracle
- Owen
- Other
- Opening
- Oxygen
- Otter
- Orangutan
- Opium
- Okey
- Opportunity
- Oats
- Oatmeal
- Opener
- Orca
- Oman
- Outlet
- Our
- Oscar
- Orc
- organ
- Orb
- Oral
- operator
- ore
- Orchestra
- Online
- officer
- obstacle
- Organization
- Oreo
- Opal
- Older
- Ocular
- Outside
- Origami
- olives
- Ogre
- Operation
- olive oil
- offer
- Odd
- Obvious
- own
- Ornitology
- organism
- Ordinary
- orange juice
- Option
- opposite
- Onyx
- Olivia
- Okno
- Ohio
- Offline
- o'block
- Oath
- Oak wood
- Overthinking
- Omlet
- Ombre
- Often
- Obesity
- Oasis
Slová v zozname Rzeczownik z ang. na O pochádzajú od hráčov slovnej hry Meno, Mesto, Zviera, Vec.