{
  "id": "fast.speed",
  "term": "fast",
  "sense": "speed",
  "pos": "adjective",
  "status": "review",
  "level": 9,
  "arena": "common",
  "domain": "everyday",
  "style": null,
  "definition": "a change where a thing moves a large amount of distance in a short amount of time",
  "folk_gloss": null,
  "emergence": {
    "components": [
      "motion.movement",
      "time.dimension",
      "change.process",
      "lot.quantity",
      "short.length"
    ],
    "interaction": "motion occurs across a large distance within a short span of time",
    "novel_properties": [
      "rate of motion",
      "high velocity",
      "temporal efficiency of movement"
    ]
  },
  "examples": [
    {
      "text": "The Parker Solar Probe reached 692,000 km/h during its close approach to the Sun in 2023.",
      "domain": "physics"
    },
    {
      "text": "Usain Bolt ran 100 meters in 9.58 seconds at the 2009 World Championships in Berlin.",
      "domain": "biology"
    },
    {
      "text": "Google's TPU v4 processes AI training tasks 2.5 times faster than its predecessor in real-world benchmarks.",
      "domain": "computing"
    }
  ],
  "relations": [
    {
      "id": "motion.movement",
      "type": "is-a",
      "note": "fast is a kind of rapid motion"
    }
  ],
  "used_by": [
    "decay.process",
    "flux.rate",
    "quick.speed",
    "season.climate",
    "zip.movement"
  ],
  "forms": [
    "fast",
    "fasted",
    "faster",
    "fastest",
    "fasting",
    "fasts"
  ],
  "closed": false,
  "provenance": {
    "author": "openrouter:openai/gpt-oss-120b",
    "date": "2026-07-29",
    "confidence": 0.6,
    "reconciled": {
      "by": "openrouter:qwen/qwen3-235b-a22b-2507",
      "date": "2026-07-31",
      "changed": "definition",
      "note": "Added missing constitutive concepts (change.process, lot.quantity, short.length) to components; adjusted definition slightly for accuracy and alignment without drift."
    }
  },
  "canonical": "https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-fast.speed"
}