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role model n.
A person who serves as a model in a particular behavioral or social role for another person to emulate.
A person who serves as an example of the values, attitudes, and behaviors associated with a role. For example, a father is a role model for his sons. Role models can also be persons who distinguish themselves in such a way that others admire and want to emulate them. For example, a woman who becomes a successful brain surgeon or airline pilot can be described as a role model for other women.