An age bracket refers to a specific range of ages within which people are grouped together. This term is commonly used in demographic studies, market research and statistics where it's necessary to categorize individuals based on their age for analysis or comparison purposes. Age brackets can vary depending on the purpose of the study but generally they include categories such as children (0-12 years), teenagers (13-17 years), young adults (18-34 years), middle aged (35-54 years) and seniors (55+ years).