Microcosm refers to something small representing a larger complexity. This diorama is a microcosm of the ancient city.
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Not Always Physical
Microcosm isn't restricted to physical spaces; it can be conceptual or situational. The debate team is a microcosm of our society's political discourse.
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Reflecting Diversity
Microcosms often capture diverse characteristics within a small frame. Our book club is a microcosm of the city's cultural mix.