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Start with the full category, then apply the exact boundary: The three main types: plates move together, apart or past one another. Enter a boundary type. Broad boundary zones without a defined motion are excluded. You only need one qualifying answer. A longer name is not automatically rarer.
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TransformTransform · 85 points · 9 characters
At a transform boundary, plates slide horizontally past one another.
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Transform85 points · Shortest accepted spelling: Transform
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- Apply the complete question boundary: The three main types: plates move together, apart or past one another. Enter a boundary type. Broad boundary zones without a defined motion are excluded.
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Each entry belongs to the bounded set defined by the prompt. The named source supports the underlying facts; our editorial scoring is a separate layer.
Source: USGS · Understanding plate motions ↗
Reference version: 2026-10-21. See our answer policy for how we handle aliases and omissions.