This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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v. Simple past tense and past participle of burble.

"No. The entire pan burbled and bubbled and generally behaved very strangely."

burbled    burbles    burbling   

sound    go   

ripple    babble    guggle    bubble    gurgle   

herbal    nonverbal    verbal   

'normal    pipe-dream    holloa    school-life    drumlike    coping    time-space    creepin    thecompany    violist