Concentrate

• POS: Noun, Verb (intransitive), Verb (transitive)
• HYPHEN: con=cen=trate

CIDE DICTIONARY

Concentrate, v. t. [Pref. con- + L. centrum center. Cf. Concenter.].

•  To bring to, or direct toward, a common center; to unite more closely; to gather into one body, mass, or force; to fix; as, to concentrate rays of light into a focus; to concentrate the attention.  [1913 Webster]

  "(He) concentrated whole force at his own camp."  [1913 Webster]
•  To increase the strength and diminish the bulk of, as of a liquid or an ore; to intensify, by getting rid of useless material; to condense; as, to concentrate acid by evaporation; to concentrate by washing; -- opposed to dilute.  [1913 Webster]

  "Spirit of vinegar concentrated and reduced to its greatest strength."

Syn. -- To combine; to condense; to consolidate.

Concentrate, v. i. 

 To approach or meet in a common center; to consolidate; as, population tends to concentrate in cities.  [1913 Webster]

OXFORD DICTIONARY

Concentrate, v. & n.
--v.
1 intr. (often foll. by on, upon) focus all one's attention or mental ability.
2 tr. bring together (troops, power, attention, etc.) to one point; focus.
3 tr. increase the strength of (a liquid etc.) by removing water or any other diluting agent.
4 tr. (as concentrated adj.) (of hate etc.) intense, strong.
--n.
1 a concentrated substance.
2 a concentrated form of esp. food.

Derivative

concentratedly adv. concentrative adj. concentrator n.

Etymology

after concentre f. F concentrer (as con- + centre)

THESAURUS

Concentrate

abbreviate, accelerate, aggravate, approach, assemble, attend closely to, attend to business, be alert, be obsessed with, beef up, blow up, bring into focus, bring together, center, centralize, circumscribe, close, close in, close up, close with, cluster, coarct, collect, come together, compact, complicate, compress, concenter, concentralize, concentrate on, concentrate the mind, concentrate upon, concentrated, concentration, condense, congest, congregate, consolidate, constant, constrict, constringe, contract, converge, cram, cramp, crowd, curtail, decoct, decoction, decrease, deepen, densen, densify, direct, distill, distillate, distillation, double, draw, draw in, draw together, elixir, enhance, essence, essentialize, establish, exacerbate, exaggerate, exclusive, express, extract, extraction, fall in with, firm, fix, fix on, fixate, fixed, focalize, focus, focus on, funnel, gather, give heed, group, heap, heat up, heighten, hop up, hot up, infuse, infusion, integrate, intensify, intersect, jam, jazz up, key up, knit, look lively, look out, look sharp, magnify, make complex, mass, meet, melt down, miss nothing, narrow, narrow the gap, nip, pay attention, pay heed, pile, pinch, press, press out, pucker, pucker up, purification, purse, put, quintessence, ram down, ramify, redouble, reduce, refine, refinement, reinforce, render, rivet, run together, scrutinize, set, settle, sharpen, shorten, shrink, soak, solidify, soup up, spirit, squeeze, steadfast, steady, steep, step up, strangle, strangulate, strengthen, study, take care, take heed, taper, think, triple, undistracted, undivided, unfaltering, unite, unremitting, unwavering, watch out, whet, wring, wring out, wrinkle

ROGET THESAURUS

Concentrate

Preservation

VB preserve, maintain, keep, sustain, support, hold, keep up, keep alive, refrigerate, keep on ice, not willingly let die, bank up, nurse, save, rescue, be safe, make safe, take care of, guard, stare super antiquas vias, hold one's own, hold one's ground, stand one's ground, embalm, cure, salt, pickle, season, kyanize, bottle, pot, tin, can, sterilize, pasteurize, radiate, dry, lyophilize, freeze- dry, concentrate, evaporate, freeze, quick-freeze, deep-freeze, husband.

Assemblage

VB assemble, collect, muster, meet, unite, join, rejoin, cluster, flock, swarm, surge, stream, herd, crowd, throng, associate, congregate, conglomerate, concentrate, precipitate, center round, rendezvous, resort, come together, flock get together, pig together, forgather, huddle, reassemble, assemble, muster, bring together, get together, put together, draw together, scrape together, lump together, collect, collocate, colligate, get, whip in, gather, hold a meeting, convene, convoke, convocate, rake up, dredge, heap, mass, pile, pack, put up, truss, cram, acervate, agglomerate, aggregate, compile, group, aggroup, concentrate, unite, collect into a focus, bring into a focus, amass, accumulate, collect in a dragnet, heap Ossa upon Pelion, assemble, collect, muster, meet, unite, join, rejoin, cluster, flock, swarm, surge, stream, herd, crowd, throng, associate, congregate, conglomerate, concentrate, precipitate, center round, rendezvous, resort, come together, flock get together, pig together, forgather, huddle, reassemble, assemble, muster, bring together, get together, put together, draw together, scrape together, lump together, collect, collocate, colligate, get, whip in, gather, hold a meeting, convene, convoke, convocate, rake up, dredge, heap, mass, pile, pack, put up, truss, cram, acervate, agglomerate, aggregate, compile, group, aggroup, concentrate, unite, collect into a focus, bring into a focus, amass, accumulate, collect in a dragnet, heap Ossa upon Pelion.

Centrality

VB be central, converge, render central, centralize, concentrate, bring to a focus.

Convergence

VB converge, concur, come together, unite, meet, fall in with, close with, close in upon, center round, center in, enter in, pour in, gather together, unite, concentrate, bring into a focus.