* Literal meaning: The mountain path was treacherous due to the icy conditions, making it extremely difficult to navigate.
* Figurative meaning: The political landscape was treacherous for the new candidate, filled with hidden agendas and shifting alliances.
* Referring to a person: He was a treacherous ally, betraying his friends for personal gain.
* Referring to a situation: The negotiations were treacherous, with both sides holding onto their positions fiercely.
Let me know if you'd like more examples or want to explore other ways to use the word!