What's the difference between back and lack?

Back


Definition:

  • (n.) A large shallow vat; a cistern, tub, or trough, used by brewers, distillers, dyers, picklers, gluemakers, and others, for mixing or cooling wort, holding water, hot glue, etc.
  • (n.) A ferryboat. See Bac, 1.
  • (n.) In human beings, the hinder part of the body, extending from the neck to the end of the spine; in other animals, that part of the body which corresponds most nearly to such part of a human being; as, the back of a horse, fish, or lobster.
  • (n.) An extended upper part, as of a mountain or ridge.
  • (n.) The outward or upper part of a thing, as opposed to the inner or lower part; as, the back of the hand, the back of the foot, the back of a hand rail.
  • (n.) The part opposed to the front; the hinder or rear part of a thing; as, the back of a book; the back of an army; the back of a chimney.
  • (n.) The part opposite to, or most remote from, that which fronts the speaker or actor; or the part out of sight, or not generally seen; as, the back of an island, of a hill, or of a village.
  • (n.) The part of a cutting tool on the opposite side from its edge; as, the back of a knife, or of a saw.
  • (n.) A support or resource in reserve.
  • (n.) The keel and keelson of a ship.
  • (n.) The upper part of a lode, or the roof of a horizontal underground passage.
  • (n.) A garment for the back; hence, clothing.
  • (a.) Being at the back or in the rear; distant; remote; as, the back door; back settlements.
  • (a.) Being in arrear; overdue; as, back rent.
  • (a.) Moving or operating backward; as, back action.
  • (v. i.) To get upon the back of; to mount.
  • (v. i.) To place or seat upon the back.
  • (v. i.) To drive or force backward; to cause to retreat or recede; as, to back oxen.
  • (v. i.) To make a back for; to furnish with a back; as, to back books.
  • (v. i.) To adjoin behind; to be at the back of.
  • (v. i.) To write upon the back of; as, to back a letter; to indorse; as, to back a note or legal document.
  • (v. i.) To support; to maintain; to second or strengthen by aid or influence; as, to back a friend.
  • (v. i.) To bet on the success of; -- as, to back a race horse.
  • (v. i.) To move or go backward; as, the horse refuses to back.
  • (v. i.) To change from one quarter to another by a course opposite to that of the sun; -- used of the wind.
  • (v. i.) To stand still behind another dog which has pointed; -- said of a dog.
  • (adv.) In, to, or toward, the rear; as, to stand back; to step back.
  • (adv.) To the place from which one came; to the place or person from which something is taken or derived; as, to go back for something left behind; to go back to one's native place; to put a book back after reading it.
  • (adv.) To a former state, condition, or station; as, to go back to private life; to go back to barbarism.
  • (adv.) (Of time) In times past; ago.
  • (adv.) Away from contact; by reverse movement.
  • (adv.) In concealment or reserve; in one's own possession; as, to keep back the truth; to keep back part of the money due to another.
  • (adv.) In a state of restraint or hindrance.
  • (adv.) In return, repayment, or requital.
  • (adv.) In withdrawal from a statement, promise, or undertaking; as, he took back0 the offensive words.
  • (adv.) In arrear; as, to be back in one's rent.

Example Sentences:

  • (1) Arda Turan's deflected long-range strike puts Atlético back in control.
  • (2) In a debate in the House of Commons, I will ask Britain, the US and other allies to convert generalised offers of help into more practical support with greater air cover, military surveillance and helicopter back-up, to hunt down the terrorists who abducted the girls.
  • (3) Recent data collected by the Games Outcomes Project and shared on the website Gamasutra backs up the view that crunch compounds these problems rather than solving them.
  • (4) Northern Ireland will not be dragged back by terrorists who have nothing but misery to offer."
  • (5) Patrice Evra Evra Handed a five-match international ban for his part in the France squad’s mutiny against Raymond Domenech at the 2010 World Cup, it took Evra almost a year to force his way back in.
  • (6) On the way back to Pristina later, the lawyer told me everything was fine.
  • (7) Names, and the absence of them, could be important Facebook Twitter Pinterest Don’t look back … Daisy Ridley’s Rey and John Boyega’s stormtrooper Finn.
  • (8) David Cameron has insisted that membership of the European Union is in Britain's national interest and vital for "millions of jobs and millions of families", as he urged his own backbenchers not to back calls for a referendum on the UK's relationship with Brussels.
  • (9) Critics say he is unelectable as prime minister and will never be able to implement his plans, but he has nonetheless pulled attention back to an issue that many thought had gone away for good.
  • (10) The water is embossed with small waves and it has a chill glassiness which throws light back up at the sky.
  • (11) Now, as the Senate takes up a weakened House bill along with the House's strengthened backdoor-proof amendment, it's time to put focus back on sweeping reform.
  • (12) Anxious mood and other symptoms of anxiety were commonly seen in patients with chronic low back pain.
  • (13) When you have been out for a month you need to prepare properly before you come back.” Pellegrini will make his own assessment of Kompany’s fitness before deciding whether to play him in the Bournemouth game, which he is careful to stress may not be the foregone conclusion the league table might suggest.
  • (14) Sterile, pruritic papules and papulopustules that formed annular rings developed on the back of a 58-year-old woman.
  • (15) A recent visit by a member of Iraq's government from Baghdad to Basra and back cost about $12,000 (£7,800), the cable claimed.
  • (16) Univariate and multivariate analyses indicated previous LBP or back pain in another location of the spine were strongly associated with LBP during the study year.
  • (17) Former lawmaker and historian Faraj Najm said the ruling resets Libya “back to square one” and that the choice now faced by the Tobruk-based parliament is “between bad and worse”.
  • (18) He’s been so consistent this season.” Barkley took the two late penalties because the regular taker, Romelu Lukaku, had been withdrawn at half-time with a back injury that is likely to keep the striker out of Saturday’s trip to Stoke City.
  • (19) Environment groups Environment groups that have strongly backed low-carbon power have barely wavered in their opposition to nuclear in the last decade, although their arguments now are now much about the cost than the danger it might pose.
  • (20) United believe it is more likely the right-back can be bought in the summer but are exploring what would represent the considerable coup of acquiring the 26-year-old immediately.

Lack


Definition:

  • (n.) Blame; cause of blame; fault; crime; offense.
  • (n.) Deficiency; want; need; destitution; failure; as, a lack of sufficient food.
  • (v. t.) To blame; to find fault with.
  • (v. t.) To be without or destitute of; to want; to need.
  • (v. i.) To be wanting; often, impersonally, with of, meaning, to be less than, short, not quite, etc.
  • (v. i.) To be in want.
  • (interj.) Exclamation of regret or surprise.

Example Sentences:

  • (1) Here we have asked whether protection from blood-borne antigens afforded by the blood-brain barrier is related to the lack of MHC expression.
  • (2) tRNA from mutant IB13 lacks 5-methylaminomethyl-2-thio-uridine in vivo due to a permanently nonfunctional methyltransferase.
  • (3) BL6 mouse melanoma cells lack detectable H-2Kb and had low levels of expression of H-2Db Ag.
  • (4) Treatment termination due to lack of efficacy or combined insufficient therapeutic response and toxicity proved to be influenced by the initial disease activity and by the rank order of prescription.
  • (5) In the past, the interpretation of the medical findings was hampered by a lack of knowledge of normal anatomy and genital flora in the nonabused prepubertal child.
  • (6) A diplomatic source said the killing appeared particularly unusual because of Farooq lack of recent political activity: "He was lying low in the past two years.
  • (7) The present study examined whether the lack of chronic hemodynamic effects of ANP in control rats was due to changes in vascular reactivity to the peptide.
  • (8) Since it was established, it has stoked controversy about contemporary art, though in recent years it has been more notable for its lack of sensationalism.
  • (9) Inadequate treatment, caused by a lack of drugs and poorly trained medical attendants, is also a major problem.
  • (10) Because of the small number of patients reported in the world literature and lack of controlled studies, the treatment of small cell carcinoma of the larynx remains controversial; this retrospective analysis suggests that combination chemotherapy plus radiation offers the best chance for cure.
  • (11) I would immediately look askance at anyone who lacks the last and possesses the first.
  • (12) The detection of these antibodies is difficult owing to the lack of standardization and of specificity of the laboratory tests.
  • (13) Core enzyme, lacking omega subunit, catalyzed this reaction at a rate less than 1% that of holoenzyme.
  • (14) But not only did it post a larger loss than expected, Amazon also projected 7% to 18% revenue growth over the busiest shopping period of the year, a far cry from the 20%-plus pace that had convinced investors to overlook its persistent lack of profit in the past.
  • (15) Urine specimens from patient REE also contained a light chain fragment that lacked the first (amino-terminal) 85 residues of the native light chain but otherwise was identical in sequence to the light chain REE.
  • (16) Thus the failure to raise anti-Id with internal image characteristics may provide an explanation for the lack of anti-gp120 activity reported in anti-Id antisera raised to multiple anti-CD4 antibodies.
  • (17) His walkout reportedly meant his fellow foreign affairs select committee members could not vote since they lacked a quorum.
  • (18) In South Africa, health risks associated with exposure to toxic waste sites need to be viewed in the context of current community health concerns, competing causes of disease and ill-health, and the relative lack of knowledge about environmental contamination and associated health effects.
  • (19) The functional capacity to present antigens to T cells was lacking in normal resting B cells, but was acquired following LK treatment.
  • (20) These findings indicate an association between HLA-B7 and ankylosing spondylitis in American blacks and suggest that these patients who lack B27 but possess B7 represent a subgroup of patients with this disease.