Axiom, Axis, Backbone, Bearing, Bottom, Burden, Butter, Centroid, Chutzpah, Climax, Connotation, Consequence, Core, Cornerstone, Courage, Crisis, Crush, Crux, Denotation, Depth, Distillate, Distillation, Drift, Effect, Elixir, Essence, Essential, Extension, Fabric, Flower, Focus, Force, Fulcrum, Fundamental, Gist, Squash, Stamina, Stuff, Substance, Sum, Summary, Summation, Tenor, Thrust, Toughness, Umbilicus, Undertone, Upshot, Value, Weight, Gravity, Grit, Guts, Heart, Hub, Idea, Impact, Implication, Import, Importance, Issue, Kernel, Keystone, Landmark, Magnitude, Marrow, Mash, Material, Matter, Meaning, Meaningfulness, Meat, Medium, Medulla, Mettle, Middle, Milestone, Moment, Mush, Nave, Navel, Nerve, Nucleus, Overtone, Paste, Pertinence, Pivot, Plaster, Pluck, Point, Porridge, Postulate, Poultice, Principle, Pudding, Pulp, Purport, Quick, Quid, Quintessence, Quintessential, Recap, Recapitulation, Reference, Referent, Relation, Relevance, Resume, Root, Rundown, Sap, Sauce, Scope, Sense, Short, Significance, Signification, Smash, Soul, Spirit, Sponge