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Definition of root:

  1. A primitive form of speech; one of the earliest terms employed in language; a word from which other words are formed; a radix, or radical.
  2. An ancestor or progenitor; and hence, an early race; a stem.
  3. An edible or esculent root, especially of such plants as produce a single root, as the beet, carrot, etc.; as, the root crop.
  4. Hence, to seek for favor or advancement by low arts or groveling servility; to fawn servilely.
  5. That factor of a quantity which when multiplied into itself will produce that quantity; thus, 3 is a root of 9, because 3 multiplied into itself produces 9; 3 is the cube root of 27.
  6. That which resembles a root in position or function, esp. as a source of nourishment or support; that from which anything proceeds as if by growth or development; as, the root of a tooth, a nail, a cancer, and the like.
  7. The cause or occasion by which anything is brought about; the source.
  8. The descending, and commonly branching, axis of a plant, increasing in length by growth at its extremity only, not divided into joints, leafless and without buds, and having for its offices to fix the plant in the earth, to supply it with moisture and soluble matters, and sometimes to serve as a reservoir of nutriment for future growth. A true root, however, may never reach the ground, but may be attached to a wall, etc., as in the ivy, or may hang loosely in the air, as in some epiphytic orchids.
  9. The fundamental tone of any chord; the tone from whose harmonics, or overtones, a chord is composed.
  10. The lowest place, position, or part.
  11. The time which to reckon in making calculations.
  12. The underground portion of a plant, whether a true root or a tuber, a bulb or rootstock, as in the potato, the onion, or the sweet flag.
  13. To be firmly fixed; to be established.
  14. To fix the root; to enter the earth, as roots; to take root and begin to grow.
  15. To plant and fix deeply in the earth, or as in the earth; to implant firmly; hence, to make deep or radical; to establish; - used chiefly in the participle; as, rooted trees or forests; rooted dislike.
  16. To shout for, or otherwise noisly applaud or encourage, a contestant, as in sports; hence, to wish earnestly for the success of some one or the happening of some event, with the superstitious notion that this action may have efficacy; -- usually with for; as, the crowd rooted for the home team.
  17. To tear up by the root; to eradicate; to extirpate; - with up, out, or away.
  18. To turn up or to dig out with the snout; as, the swine roots the earth.
  19. To turn up the earth with the snout, as swine.

Synonyms:

reservoir, reason, chill out, seek out, fundamental, ancestor, apposition, nucleus, feed on, cool it, beanstalk, bass, starting point, conciliate, square up, alkali, crotchet, derivation, compound, focus, foundation, reconcile, font, root word, net, go through, feed off, bract, calm down, Arabic numeral, fountain, underpinning, adjudicate, offset, finalise, provenance, cornerstone, bedrock, brain death, B, gist, stemma, gravamen, paper, bulb, stem turn, fountainhead, gouge, anther, inception, lineage, ancestry, homeland, al-Qa'ida, C, anaphora, bull's-eye, search out, go under, enamel, base, pick through, become established, affix, blossom, ground, resolve, hunt, theme, keynote, spread-eagle, composition, al-Qaida, patch up, componential analysis, idea, home town, arithmetic progression, footing, settle down, rootstock, appropriacy, dentures, feed, double flat, pull, mother country, base of operations, stalk, descent, resolution, take root, parentage, blood, stand, warp, free radical, source, stuff, pivot, line, basic, seedbed, beginning, home, blood line, ascendant, groundwork, kickoff, finalize, solvent, graze, nail down, warp and woof, ruminate, solution, prey on, point, kernel, derivative, informant, sum, bloom, central nervous system, canine, hub, canonical form, generator, climb, etymon, radical, beat, milk tooth, first, subside, shank, keystone, square off, extraction, bur, computation, brain cell, incisor, spreadeagle, origin, tuber, substance, result, be, steady down, well, cerebral, chord, go down, commencement, conception, over, germ, arrival, musical theme, cool off, side, choke, fade, bottom line, come up, blade, bottom, common multiple, tooth root, pedigree, fore, seed, fount, nub, report, settle, make up, search, centerpiece, rootage, boll, false teeth, aerial root, essence, fall, baby tooth, D, quintessence, cerebral cortex, descend, fang, al-Qaeda, scavenge, meat and potatoes, constant, expel, grow, marrow, understructure, hunt down, reference, common factor, parent, the old country, author, rudiment, sink, pedestal, dentine, pith, infrastructure, heart, die back, meat, A, appearance, roots, mother, forerunner, antecedent, look for, brainwave, buck teeth, simmer down, rout, showtime, outset, calm, fatherland, root system, bloodline, melodic theme, fundament, words, bow, begin, brain damage, onset, rout out, bud, floor, decide, group, etymon, stem, nubbin, bear, provenience, birthplace, do, motif, brain, ascendent, prow, get-go, cradle, chemical group, soul, browse, look out for, spring, come out, cerebellum, topic, wellspring, determine, blend, nucleotide, get back, brainstem, probe, line of descent, quick, center, introduction, bag, substructure, starting time, spirit, foot, core, subject, answer, someone's native soil, start, stock, rootle.

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