* Formal: The envoy from the neighboring kingdom arrived bearing gifts and proposals for a treaty.
* Historical: Queen Elizabeth I sent a special envoy to negotiate peace with Spain.
* Figurative: The poet's words were a powerful envoy of hope and resilience.
* Modern: The company's CEO acted as an envoy for the new product at the trade show.
You can also use "envoy" to describe someone who is sent on a specific mission:
* Direct: The United Nations sent an envoy to investigate the humanitarian crisis.
* Informal: My friend was the envoy to pick up the pizza.
The word "envoy" is often used in formal contexts, but it can also be used in more informal situations.