违规 (wéi guī) literally means 'to violate rules' — 违 (wéi) means 'to go against' or 'to disobey', and 规 (guī) means 'rules', 'regulations', or 'standards'. Together, they form a compound verb meaning to break or contravene established rules, policies, or official guidelines. It is commonly used in formal, administrative, educational, workplace, and legal contexts — for instance, when describing traffic violations, academic misconduct, or corporate policy breaches.

The term carries a neutral-to-negative connotation and implies accountability; it is rarely used casually or humorously. While it can function as a verb ('to violate rules'), it often appears as a noun ('a violation') or adjective ('violation-related') depending on context and sentence structure. It’s frequently paired with nouns like 行为 (behavior), 操作 (operation), 或 处罚 (penalty) to specify the type or consequence of the infraction.