Read the excerpt from "Jabberwocky," by Lewis Carroll. And as in uffish thought he stood, The Jabberwock, with eyes of flame, Came whiffling through the tulgey wood, And burbled as it came! Based on its sound, what could the nonsense word "burbled" mean? snarled yelled snuck talked

I believe the nonsense word "burbled" means snarled.

Explanation:

From the description is the excerpt, the Jabberwocky seems to be a terrifying and ferocious creature. If it has eyes of flame and if it comes whiffling, we can imagine it is a scary beast. To whiffle means to produce a puffing sound. Therefore, with that information in mind, I believe the best interpretation for the word "burbled" is "snarled". It is the most probable sound to be emitted by such a ferocious-looking creature.