| Main Entry: | |
| Part of Speech: | noun |
| Definition: | core; basis for something's |
| Synonyms: | beginning bud, center, crux, embryo, focus, foundation, germ, heart, hub, kernel, matter, nub, pivot, premise, principle, seed, spark |
| Antonyms: | exterior, exteriority, outside |
| Main Entry: | bud |
| Part of Speech: | noun |
| Definition: | new sprout on plant |
| Synonyms: | bloom, blossom, embryo, floret, germ, incipient flower, nucleus, shoot, spark |
| Main Entry: | center |
| Part of Speech: | noun |
| Definition: | middle point |
| Synonyms: | axis, bull's-eye, centrality, centriole, centrum, core, cynosure, equidistance, essence, focal point, focus, gist, heart, hotbed, hub, inside, interior, intermediacy, kernel, mainstream*, marrow, middle of the road, midpoint, midst, nave, navel, nucleus, omphalos, pith, pivot, place, polestar, quick, radial point, root, seat |
| Antonyms: | border, boundary, edge, exterior, exteriority, margin, outside, outskirts, periphery, rim, surroundings |
| Main Entry: | centerpiece |
| Part of Speech: | noun |
| Definition: | highlight |
| Synonyms: | best part, center of attention, climax, focal point, heart, high point, high spot, hub, keynote, main event, main feature, nucleus |
| Main Entry: | core |
| Part of Speech: | noun |
| Definition: | center, gist |
| Synonyms: | amount, base, basis, body, bottom line, bulk, burden, consequence, corpus, crux, essence, focus, foundation, heart, import, importance, kernel, main idea, mass, meat and potatoes, meat*, middle, midpoint, midst, nitty gritty, nub, nucleus, origin, pith, pivot, purport, quick, root, significance, staple, substance, thrust, upshot |
| Antonyms: | covering, exterior, exteriority, outside, perimeter, surface |
| Main Entry: | egg |
| Part of Speech: | noun |
| Definition: | seed, cell; embryo of an animal |
| Synonyms: | bud, cackle, cackleberry, germ, nucleus, oospore, ovum, roe, rudiment, spawn, yellow eye |
| Main Entry: | essence |
| Part of Speech: | noun |
| Definition: | heart, significance |
| Synonyms: | aspect, attribute, backbone, base, basis, be-all and end-all, being, bottom, bottom line, burden, caliber, character, chief constituent, constitution, core, crux, element, entity, essentia, essentiality, fiber, form, fundamentals, germ, grain, kernel, life, lifeblood, main idea, marrow, meaning, meat*, name of game, nature, nitty-gritty, nub, nucleus, pith, point, principle, property, quality, quiddity, quintessence, reality, root, soul, spirit, structure, stuff, substance, timber, vein, virtuality |
| Main Entry: | germ |
| Part of Speech: | noun |
| Definition: | beginning |
| Synonyms: | bud, cause, egg, embryo, inception, nucleus, origin, ovule, ovum, root, rudiment, seed, source, spark, spore, sprig, sprout |
| Main Entry: | heart |
| Part of Speech: | noun |
| Definition: | essence, central part |
| Synonyms: | basic, bosom, bottom line, center, coal and ice, core, crux, focal point, focus, gist, hub, kernel, marrow, middle, nitty-gritty, nub, nucleus, pith, polestar, quick*, quintessence, root, seat, soul |
| Antonyms: | exterior, exteriority, outside, periphery, surface |