* Formal: The ancient ruins betoken a civilization lost to time.
* Literary: The flickering candlelight betokened a sense of both mystery and romance.
* Figurative: Her trembling hands betokened a deep-seated fear.
* Specific: The red flag betokened a dangerous hazard ahead.
Important Note: "Betoken" is a somewhat formal and uncommon word. While it's grammatically correct, it might sound stilted in casual conversation.