Dragon, particularly one without legs or wings(noun)
Snake, particularly a large one(noun)
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Use "wyrm" in a sentence
"Note: Despise the term "wyrm" in there, I've been informed by various comments under yesterday's post on the trilogy that the books are dragon-touched, not dragon-saturated."
"“Perhaps it is time to make a try at the old wyrm.”"
"Still, the wyrm turned, twisting the storm tighter and tighter around it."