A person, thing, or quality that makes something stand out or be recognized as different from others.
From 'differentiate' with the agent suffix '-or,' which marks a person or thing that performs an action. Latin 'ferre' means to carry or bear; the differentiator carries the quality of difference.
In business, a 'differentiator' is what makes you stand out from competitors—for Apple, sleek design was a key differentiator that revolutionized how people thought about technology.
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