The word "most vociferant" is spelled with the IPA phonetic transcription /moʊst vəˈsɪfərənt/. The first syllable "mo" is pronounced like the word "mow," followed by "st" which is pronounced like the word "stow." The third syllable "vi" is pronounced like the word "viper," while "ce" is pronounced like "sigh." The fourth syllable "fer" is pronounced like "fur," and "ant" is pronounced like "aunt." "Vociferant" means to be loud and vocal in expressing one's opinions or grievances.
The word "most" is a superlative form of the adjective "much" which ultimately comes from the Old English word "māst" meaning "greatest" or "most". It is related to the Middle High German "meist" and the Old Norse "mest".
The word "vociferant" derives from the Latin verb "vociferari" which means "to shout" or "to cry aloud". It is a combination of "vōx" meaning "voice" and "ferre" meaning "to carry".
Therefore, "most vociferant" combines the superlative form "most" with "vociferant" to describe someone or something as the "greatest" or "loudest" in terms of shouting or making loud noises.