What's the difference between certify and testify?

Certify


Definition:

  • (v. t.) To give cetain information to; to assure; to make certain.
  • (v. t.) To give certain information of; to make certain, as a fact; to verify.
  • (v. t.) To testify to in writing; to make a declaration concerning, in writing, under hand, or hand and seal.

Example Sentences:

  • (1) Calves were tagged in the right ear with the green certified preconditioned for health (CPH) tag of the American Association of Bovine Practitioners.
  • (2) Twenty-two per cent of all deaths (10 children who died outside hospital and six who were certified dead on admission) occurred before specialist care was reached.
  • (3) The performance of candidates on the geriatric medicine items on the American Board of Internal Medicine's 1980, 1981, and 1982 Certifying Examinations was analyzed.
  • (4) Three brands of Ca supplement, a laboratory-reagent grade CaCO3 and a certified reference material (International Atomic Energy Agency H-5 Animal Bone) wee analysed for Cd and Pb by four different analytical techniques, viz., anodic stripping voltammetry inductively coupled plasma mass spectrometry, flame atomic absorption spectrometry and electrothermal atomic absorption spectrometry.
  • (5) "The rise in those who are self-employed is good news, but the reality is that those who have turned to freelance work in order to pull themselves out of unemployment and those who have decided to work for themselves face a challenging tax maze that could land them in hot water should they get it wrong," says Chas Roy-Chowdhury, head of taxation at the Association of Certified Chartered Accountants.
  • (6) Latex particles, including BCR Certified Reference Material CRM 166a, have important applications for checking linearity and for calibrating aperture-impedance instruments used to determine red-cell volumes.
  • (7) The British Medical Association could have been requested to appoint a monitor who could now certify the team's achievement while simultaneously avoiding publicity focused on the Browns with whom the scientist-physician have achieved their success.
  • (8) He continues to be certified as clinically depressed by his GP and a local psychiatrist.
  • (9) Despite spanning more than 1,300 acres it will not, apparently, be a contender for the title of world's largest: that appears still to reside with the 47-stage Ramoji Film City in Hyderabad, India, as certified by Guinness World Records .
  • (10) A chartered certified accountant, he was educated at University College London and holds UK citizenship but is based in Monaco with his wife and two children.
  • (11) Additional staff anesthesiologists, certified nurse-anesthetists, and anesthesia residents should be on call for other emergency surgery.
  • (12) A survey of certified regional poison centers in the United States was performed to determine sources of treatment information for mushroom intoxications, and extent of reporting of mushroom epidemiological data to a national mushroom case registry.
  • (13) Three groups of allied health professionals, including dental hygienists, dietitians, and certified nurse-midwives, were surveyed to determine current practice, beliefs, and attitudes regarding health promotion and disease prevention.
  • (14) The author uses his experience as a certified dental technician to discuss arch and tooth preparation, clasping, and proper impression technique.
  • (15) He suggests that, to prevent abuse of the law and pressure being put on chronic sufferers to end their lives, two doctors should certify a patient is terminally ill and patients should declare their intentions before an independent witness.
  • (16) A recent article in the New England Journal of Medicine examined the percentage of physicians listed under specialty headings in a Yellow Pages publication who were board certified.
  • (17) X-ray studies of the ankle joints of 209 patients with operatively certified ankle joint instability were examined retrospectively in order to estimate the importance of lateral instability in causing degenerative osteoarthritis of the ankle joint.
  • (18) This paper reports the results of a survey of 1000 certified dental assistants in Ontario, Canada.
  • (19) Making sure consumers in Asia are buying certified sustainable palm oil would really push the agenda forward,” says Adam Harrison, the palm oil lead for WWF International.
  • (20) The objectives of this study were: (1) to estimate the inter- and intra-laboratory variability associated with the extraction of mixtures for bioassay, (2) to estimate the inter- and intra-laboratory variability associated with the Salmonella typhimurium bioassay when applied to complex mixtures, and (3) to determine whether standard reference complex mixtures would be useful in mutagenicity studies and to evaluate whether reference or certified mutagenicity values determined from this collaborative study should be reported.

Testify


Definition:

  • (v. i.) To make a solemn declaration, verbal or written, to establish some fact; to give testimony for the purpose of communicating to others a knowledge of something not known to them.
  • (v. i.) To make a solemn declaration under oath or affirmation, for the purpose of establishing, or making proof of, some fact to a court; to give testimony in a cause depending before a tribunal.
  • (v. i.) To declare a charge; to protest; to give information; to bear witness; -- with against.
  • (v. t.) To bear witness to; to support the truth of by testimony; to affirm or declare solemny.
  • (v. t.) To affirm or declare under oath or affirmation before a tribunal, in order to prove some fact.
  • (adv.) In a testy manner; fretfully; peevishly; with petulance.

Example Sentences:

  • (1) Right hemisphere inactivation caused a decrease in the frequency of lateral hypothalamus self-stimulation, whereas with left hemisphere inactivation it increased, which testifies to right hemisphere dominance in self-stimulation reaction.
  • (2) Both Murdoch and his son James were called to testify before parliament.
  • (3) "It is very easy to see somebody get killed over this issue," Marijuana Industry Group Director Michael Elliott testified last month.
  • (4) The data obtained testify to the presence in the granular fraction of the endopeptidase LTH-converting activity which is sensitive to pepstatin A, an aspartyl proteinase inhibitor as well as to chelators and a serine proteinase inhibitor.
  • (5) Asymmetry was revealed with predominance of the amplitude increase in the right hemisphere in the phase of the rapid sleep testifying to different roles of the cerebral hemispheres in processing of emotionally significant information.
  • (6) The many surgical procedures that have been proposed testify to the fact that no single reliable procedure has been developed.
  • (7) The biggest deviation of indexes, that testifies about metabolic changes comes to 9-14%, and immunobiological changes-up to 20-33%.
  • (8) The experimental curves plotted in the Scatchard coordinates testify to the presence in thromboplastin of two types of fragment I binding sites: those with a high (Kd = 7.6 x 10(-6) M) and moderate (Kd = 1.3 x 10(-8) M) binding affinity.
  • (9) He was also accused separately of obstruction of justice over allegations he tried to persuade a former aide not to testify against him.
  • (10) The results obtained testify to the considerable contribution of [3-14C] tryptophan and [2-14C] alanine to protein synthesis as well as to their involvement in the substrate supply of lipogenesis and energetic processes in various organs and tissues of cattle.
  • (11) On Sunday, there was an expectation that the trial could be extended after Olmert's long-time aide Shula Zaken turned state's witness and agreed to testify against him.
  • (12) He has, however, refused to testify, invoking his right to remain silent, while his lawyer has insisted his client is “insane” and therefore unfit for trial.
  • (13) Subjects with a desynchronized EEG differ from those with alpha-rhythm predominance by the highest coherence and similarity of the spectra along with their low stability in the anterior parts of the hemisphere which testifies to a high dynamic integration of the frontal systems.
  • (14) The prosecution claimed that before the trial, both Humphrey and Yu testified to police that they knew the company was operating in a legal "grey zone".
  • (15) And lest there be any remaining doubt, a forensic expert on maggots – such people do exist – testified that the theory of "semen-destroying maggots" was balderdash.
  • (16) Testifying before the Senate judiciary committee on Wednesday, John Lewis, a congressman from Georgia, said the court's ruling had left him devastated.
  • (17) British spies don wigs and makeup to testify at US trial of al-Qaida suspect Read more Abid Naseer was first arrested in 2009 in Britain on charges that he was part of a terror cell plotting to blow up a shopping mall in Manchester, England.
  • (18) His report, which has been obtained by The Observer, shows that Mubanga had asked for his sister, aunt and brother to testify in his defence.
  • (19) He also thanked nearly everyone who had been involved in the trial: his attorneys, his family, everyone who testified “with dignity” about their “unbearable” hardships.
  • (20) He had raised the possibility of calling witnesses to testify "if it really is the case that legitimate lobbyists could be paid 30% of the value of a $40m contract simply as recompense for their time and trouble".