Speech production stands for the process of forming and delivering words and sounds with the help of the mouth, tongue, and vocal cords. Synonyms for speech production include verbal communication, articulation, enunciation, phonation, pronunciation, vocalization, diction, and elocution. Verbal communication refers to the act of conveying ideas, knowledge or emotions through speech. Articulation stands for the clarity and precision of pronunciation of individual sounds and words. Phonation refers to the sound produced when air passes through the vocal cords. Pronunciation is the act of articulating words correctly. Vocalization refers to sound produced by the vocal cords that is not speech. Diction and elocution are the art of speaking clearly and effectively.