求证 literally means 'to seek verification' — combining 求 (to seek, to request) and 证 (evidence, proof, or verification). It describes the active process of checking the truth or accuracy of information, often by consulting reliable sources, conducting research, or asking experts. This verb emphasizes intellectual diligence and critical thinking, not passive acceptance.

It is commonly used in academic, journalistic, medical, and everyday contexts where factual accuracy matters — for example, verifying health advice before sharing it online, confirming a diagnosis with a second opinion, or fact-checking news reports. 求证 carries a formal, responsible tone and implies intentionality and care; it’s rarely used in casual chit-chat but appears frequently in writing, discussions about credibility, and public communication about science or policy.