| Main Entry: | |
| Part of Speech: | noun |
| Definition: | basis for something physical or mental |
| Synonyms: | ABCs, authority, base, basics, bed, bedrock, bottom, bottom line, brass tacks, foot, footing, ground, groundwork, guts*, heart*, infrastructure, justification, nitty-gritty, nub, nuts and bolts, prop, reason, root, stay, substratum, substructure, support, underpinning, understructure |
| Main Entry: | groundwork |
| Part of Speech: | noun |
| Definition: | basis, fundamentals |
| Synonyms: | ABCs, background, base, bedrock, cornerstone*, footing, foundation, ground, infrastructure, origin, preliminaries, preparation, root, substratum, underpinning, understructure |
| Main Entry: | infrastructure |
| Part of Speech: | noun |
| Definition: | foundation |
| Synonyms: | base, footing, framework, groundwork, root, support, underpinning |
| Main Entry: | prop |
| Part of Speech: | noun |
| Definition: | support |
| Synonyms: | aid, assistance, brace, buttress, column, mainstay, post, shore, stanchion, stay, strengthener, strut, truss, underpinning |
| Main Entry: | root |
| Part of Speech: | noun |
| Definition: | base, core |
| Synonyms: | basis, bedrock, beginnings, bottom, cause, center, crux, derivation, essence, essentiality, footing, foundation, fountain, fountainhead, fundamental, germ, ground, groundwork, heart, inception, infrastructure, mainspring, marrow, motive, nub, nucleus, occasion, origin, pith, provenance, provenience, quick, quintessence, radicle, radix, reason, rhizome, rock bottom, seat, seed, soul, source, starting point, stem, stuff, substance, substratum, tuber, underpinning, well |
| Notes: | a rout is a disorderly crowd of people or an overwhelming defeat; a root is the usually underground organ of a plant that lacks buds or leaves or nodes and absorbs water and mineral salts - or the form of a word after all affixes are removed; a route is an established line of travel or access - or a road, course, or way for travel from one place to another |
| Antonyms: | derivation, derivative, sprout |
| Main Entry: | support |
| Part of Speech: | noun |
| Definition: | something that holds up structure |
| Synonyms: | abutment, agency, back, backing, base, bed, bedding, block, brace, buttress, collar, column, cornerstone, device, flotation, foothold, footing, foundation, fulcrum, groundwork, guide, hold, lining, means, medium, pillar, platform, pole, post, prop, rampart, reinforcement, rest, rib, rod, shore, stake, stanchion, stave, stay, stiffener, stilt, substratum, substructure, sustentation, timber, underpinning |
| Main Entry: | fundament |
| Part of Speech: | noun |
| Definition: | foundation |
| Synonyms: | base, basis, bed, bottom, foot, footing, ground, groundwork, support, underpinning, understructure |
| Main Entry: | substratum |
| Part of Speech: | noun |
| Definition: | base |
| Synonyms: | basement, basis, bed, bedrock, bottom, foot, footing, foundation, fundament, ground, groundwork, infrastructure, pedestal, rest, root, seat, seating, stand, substructure, support, underpinning |
| Main Entry: | confirm |
| Part of Speech: | verb |
| Definition: | ratify, validate, prove |
| Synonyms: | affirm, approve, attest, authenticate, back, bear out, bless, buy, certify, check, check out, circumstantiate, corroborate, debunk, double-check, endorse, establish, explain, give green light, give high sign, give stamp of approval, give the go-ahead, give the nod, justify, lap up, make good, make sure, okay, rubber-stamp, sanction, settle, sign, sign off on, size up, subscribe, substantiate, support, thumbs up, underpin, uphold, verify, vouch, warrant, witness |
| Notes: | corroborate is used in a narrower context, usually by way of providing support for testimony in a legal proceeding; confirm is to lend support to a much wider array of things |
| Antonyms: | annul, cancel, contradict, destroy, disprove, invalidate, oppose, veto, void |