• foregin,
• aregon,
• foregion,
• reagon,
• areson,
• oreon,
• orgin,
• wrecon,
• oragon,
• orgeon,
• rigon,
• origon,
• otagon,
• oregonl,
• riegon,
• bregen,
• orgion,
• oragin,
• eragon,
• orgen

• organelle,
• organ,
• orasone,
• orogeny,
• organic,
• organism,
• organist,
• organized,
• originate,
• orison,
• organza,
• origin,
• organs,
• origanum,
• organon,
• organise,
• oregonian,
• organised,
• organdie,
• Origen,
• original,
• organiser,
• organdy,
• organizer,
• organize,
• oregano.

The adjective form of the word "Oregon" is "Oregonian".

The plural form of the word "Oregon" is "Oregons".

The singular form of the word "Oregon" is "Oregon". The word does not have a distinct singular form as it is already a singular noun referring to a state in the United States.