Tokyo
Part of speech: proper noun
Definition: Capital of Japan.
Edo
Part of speech: noun
Definition: Former name of Tokyo (江戸)
Tokyo as a proper noun is capital of japan. while Edo as a noun is former name of tokyo (江戸)
Part of speech: proper noun
Definition: Capital of Japan.
Part of speech: noun
Definition: Former name of Tokyo (江戸)
We hope you now know whether to use Tokyo or Edo in your sentence.