The "Place of Articulation" refers to the specific location in the vocal tract where airflow is constricted or blocked to produce different speech sounds. This concept is crucial in phonetics, as it helps categorize consonants based on where they are formed. Common places of articulation include the lips, teeth, alveolar ridge, hard palate, and glottis. Each place of articulation corresponds to distinct sounds. For example, sounds produced at the lips include p and b, while t and d are articulated at the alveolar ridge. Understanding these locations aids in the study of language and speech production.