几年 (jǐ nián) is a numeral phrase meaning 'how many years' when used in questions, or 'several years' in affirmative statements. The character 几 (jǐ) functions as an interrogative or indefinite numeral meaning 'how many' or 'a few', while 年 (nián) means 'year'. Together, they form a common time expression used to ask about or refer to an unspecified number of years—typically between two and five, though context may extend this range.

This phrase appears frequently in daily conversation, storytelling, and formal writing when discussing duration, experience, or elapsed time. It’s often paired with verbs like 住 (live), 工作 (work), or 学习 (study), and commonly follows measure words or prepositions like 有 (have), 过 (past experience), or 以来 (since). Unlike precise numbers, 几年 conveys approximation and avoids specificity, making it natural in informal and semi-formal contexts.