Two-word distance Every concept in LexiconAtlas reduces to 4 foundations (Space, Time, Energy, Pattern) through a prerequisite graph. How far apart are any two? First concept ↔ Second concept Connect Start typing a concept name, then pick from the dropdown. Concrete ↔ Courtroom 2 steps apart. They meet at Building (level 3), and share 11 ancestors in total. L9L8L7L6L5L4L3L2L1L0MaterialMatterPresentCeramicTimeActionLifeChangeSpaceFormCellSubstanceConcreteTransferEnvironmentOutcomeResultTemperatureCourtroomKinetic EnergyStonePhysical SpaceMotionInformationEnergyPatternOrganismQuantityEarthAnimalHeatPhysicsStone BuildStructureProcessConsequenceForceExistenceInteractionFoodServingBuildingMeaning Concrete and its chain · Courtroom and its chain · shared ancestors · foundations ← Try another pair Share this pair X Reddit Bluesky LinkedIn Copy link Spot a wrong path? The atlas is provisional — levels and prerequisite links are one curator's current mapping. If this pair's shared ancestors look off, send a quick note. Suggest a correction