年龄段 niánlíngduàn age group Origin Definitions Defs Strokes Stroke Words Sentences Sents 年龄 年齡 niánlíng noun age the age of a person, animal, or plant; years of existence段 duàn measure word section A section, part, segment, or paragraph of something continuous such as a piece of writing, a road, or a story; also used for periods of time or stages of a process.