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

• Lexulous
• Wordscraper
• Wordosaur

v. Third-person singular simple present indicative form of vociferate.

"Here, a stout beadle runs out, and vociferates for the witnesses at the very top of his voice; for you hear his cry grow fainter and fainter as he descends the steps into the court – yard below."

whisper   

vociferated    vociferates    vociferating   

verbalise    give tongue to    express    verbalize    utter   

shout   

vociferated    vociferating   

exclaim    bawl    clamor    shout    bellow