A summit is the highest point of a hill or mountain, or a high-level meeting between leaders to discuss important issues.
From Old French 'sommet', from Latin 'summum' meaning 'top, highest part', from 'summus' (highest). The political meeting sense grew from the image of top leaders at the top level.
Climbing to a mountain’s summit and attending a world leaders’ summit share the same metaphor: reaching the very top. The word always hints at peak effort and peak importance.
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