age-mate


age-mate
\\ˈ ̷ ̷ˌ ̷ ̷\ noun also age-fellow \\ˈ ̷ ̷ˌ ̷ ̷(ˌ) ̷ ̷\
: one who is a member of the same age-class as another

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n. a person or animal that is the same age as another

Useful english dictionary. 2012.