To differentiate is defined as to separate out two or more things, or to look at and understand what makes things different or distinctive.(verb)
An example of differentiate is when you can look at a good painting and a bad painting and know the difference.
See differentiate in Webster's New World College Dictionary
Origin: < ML differentiatus, pp. of differentiare < L differentia: see difference
See differentiate in American Heritage Dictionary 4
verb dif·fer·en·ti·at·ed, dif·fer·en·ti·at·ing, dif·fer·en·ti·ates verb, transitive
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