Aristotle examines multiple meanings of key terms, including "beginning," "cause," "element," and "nature," analyzing their various applications and relationships. He further defines concepts like "necessary," "one," "same," "other," "prior," "posterior," "potency," "quantum," "quality," "relative," "complete," "limit," "disposition," "having," "affection," "privation," "holding," "coming from," "part," "whole," "mutilated," "genus," and "accident,"clarifying their nuanced uses and interconnections. The work systematically dissects these terms, revealing the complexities of defining and understanding reality. Finally, Aristotle distinguishes between accidental and essential aspects of being.