‘丙级’ (bǐng jí) literally combines 丙 (bǐng), the third of the ten Heavenly Stems used historically for classification and sequencing, and 级 (jí), meaning ‘level,’ ‘grade,’ or ‘class.’ Together, it denotes ‘Class C’ or ‘third-grade’ — a standardized designation indicating the lowest or third tier in a three-tier rating system. It is commonly used in official, technical, or regulatory contexts such as safety inspections, hospital accreditation, food hygiene ratings, or building standards.

Unlike subjective terms like ‘poor’ or ‘low-quality,’ 丙级 carries formal, neutral connotations — it signals compliance with minimum requirements but not higher standards. It is often contrasted with 甲级 (jiǎ jí, Class A/first-grade) and 乙级 (yǐ jí, Class B/second-grade). The term appears in government documents, public notices, and certification reports, especially where graded evaluations are mandated by law or industry guidelines.