‘亲身’ is an adverb meaning ‘in person’ or ‘firsthand,’ emphasizing direct, personal involvement in an experience or action. It combines 亲 (qīn), meaning ‘close,’ ‘intimate,’ or ‘personal,’ and 身 (shēn), meaning ‘body’ or ‘self.’ Together, they literally suggest ‘with one’s own body’—highlighting physical presence and direct participation, rather than relying on secondhand information, reports, or intermediaries.

This word commonly modifies verbs to stress authenticity and immediacy—e.g., 亲身经历 (experience firsthand), 亲身感受 (feel personally), or 亲身考察 (inspect in person). It often appears in formal writing, news reports, academic contexts, or reflective speech where credibility and experiential authority matter. While it can occasionally function as a noun in rare fixed phrases, its primary and overwhelmingly common role is adverbial.