British spelling: to be a perfect or typical example of something, or to summarize and condense something into a shorter form.
From epitome plus the verb suffix -ise (British -ise, American -ize). The verb form became standard in the 18th century from the noun.
Meryl Streep epitomises the idea of 'skilled actor'—she's so good at acting that she somehow became what great acting looks like. That's the power of the word.
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