persons of approximately the same age and often of the same sex, nationality, educational or social background, etc.
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- age allowance,
- age cannot wither her, nor custom stale / her infinite variety,
- age hardening,
- age of anxiety,
- age of aquarius,
- age of consent,
- age of discretion
Origin of age group
First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for age-group
The age-group 15 to 20 shows very curious variations in the relative mortality of males and females.Women in Modern Industry|B. L. Hutchins
Also disturbing are statistics showing that most of those apprehended for it are in the eighteen-to-thirty-year age-group.Area Handbook for Bulgaria|Eugene K. Keefe, Violeta D. Baluyut, William Giloane, Anne K. Long, James M. Moore, and Neda A. Walpole
Online Etymology Dictionary, © 2010 Douglas Harper