The word 真的 is formed by combining the character 真, meaning "true" or "real", which conveys the core concept of authenticity, with the character 的, a highly common and versatile structural particle. The particle 的 does not have independent meaning here but functions as a grammatical suffix; when attached to 真, it transforms and solidifies the abstract notion of "truth" into a stable, usable adverbial or adjectival expression. This fusion creates a single lexical unit where the suffix 的 effectively nominalizes and emphasizes the state described by 真, resulting in a term that holistically means "really" or "truly".