• zmazon river,
• smazon river,
• wmazon river,
• qmazon river,
• anazon river,
• akazon river,
• ajazon river,
• amzzon river,
• amszon river,
• amwzon river,
• amqzon river,
• amaxon river,
• amason river,
• amaaon river,
• amazin river,
• amazkn river,
• amazln river,
• amazpn river,
• amaz0n river,
• amaz9n river

The adjective form of "Amazon River" is "Amazonian".

The plural form of "Amazon River" is "Amazon Rivers".

The singular form of the word "Amazon River" is "Amazon River". The word does not change when referring to a single instance of the river.