Homophones are words that sound the same but have different meanings and spellings. "Trader" has a unique sound, and there's no other common word that shares it.
However, you could consider using these words depending on the context:
* "Traitor" - This is a near homophone, as the pronunciation is very similar. However, it has a completely different meaning, referring to someone who betrays trust.
* "Trade-er" - This is a more informal pronunciation of "trader," but it still isn't a true homophone.
Ultimately, finding a perfect homophone for "trader" is impossible. It depends on the specific context and what you're trying to convey.