The definition of girl is a female under aged 18, or a persons' child or girlfriend, or a group of woman friends.(noun)
See girl in Webster's New World College Dictionary
Origin: ME girle, gurle, youngster of either sex < ? OE *gyrele, prob. akin to LowG göre, Ger dial. gör, girl < IE base *ĝher-, small > OIr gair, short
See girl in American Heritage Dictionary 4
Origin: Middle English girle, child, girl.
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