- 年龄段 niánlíngduàn age groupage group; age bracket; a range of ages defined for a specific purpose
- 实足年龄 shízúniánlíng exact ageA person's actual age calculated from their date of birth.
- 年龄层 niánlíngcéng age groupA specific bracket or segment of people categorized by their age
- 年龄组 niánlíngzǔ age groupa group of people of a similar age
- 心理年龄 xīnlǐniánlíng mental agea measure of an individual's mental development as determined by intelligence tests, relative to the average for a particular chronological age
- 智力年龄 zhìlìniánlíng mental ageThe age of a person's mental development as measured by a standardized intelligence test; used as a basis for education and psychological assessment; also called [[心理年龄|心理年齡|xin1 li3 nian2 ling2]]
- 法定年龄 fǎdìngniánlíng legal ageThe minimum age at which a person is legally permitted to perform certain actions or exercise certain rights.
- 生理年龄 shēnglǐniánlíng physiological agean age estimated based on an individual's physical development and bodily function rather than their actual time since birth; contrast with [[实际年龄|實際年齡|shi2 ji4 nian2 ling2]]
- 适婚年龄 shìhūnniánlíng marriageable agethe age at which it is considered appropriate or legal for a person to marry
- 实际年龄 shíjìniánlíng chronological agethe actual length of time since a person's birth, measured in years
- 平均年龄 píngjūnniánlíng average agethe average age of a group of people; also refers to the composite life or life expectancy within a population