What's the difference between knock and ping?

Knock


Definition:

  • (v. i.) To drive or be driven against something; to strike against something; to clash; as, one heavy body knocks against another.
  • (v. i.) To strike or beat with something hard or heavy; to rap; as, to knock with a club; to knock on the door.
  • (v. t.) To strike with something hard or heavy; to move by striking; to drive (a thing) against something; as, to knock a ball with a bat; to knock the head against a post; to knock a lamp off the table.
  • (v. t.) To strike for admittance; to rap upon, as a door.
  • (n.) A blow; a stroke with something hard or heavy; a jar.
  • (n.) A stroke, as on a door for admittance; a rap.

Example Sentences:

  • (1) Having been knocked out of the League Cup and Cup Winners' Cup before Christmas, they lost an FA Cup fourth-round replay at West Brom on 1 February.
  • (2) It pulled to a halt and a bodyguard got out and knocked me unconscious.
  • (3) More seriously, but no less predictably, the inflaming of sectarianism will have knock-on effects in Syria and Iraq.
  • (4) I knocked for quite some time but there was nobody there.” A neighbour said the family had not been home for “a while”.
  • (5) One day, out of the blue, there's a knock on the door.
  • (6) At 7.40am Lord Feldman, the Conservative party chairman, knocked on the front door of No 10.
  • (7) Indeed, with the pageantry already knocked off the top of the news by reports from Old Trafford, the very idea of a cohesive coalition programme about anything other than cuts looks that bit harder to sustain.
  • (8) Davenport, possibly in a fit of pique at having been knocked out, said playing Mauresmo was like 'playing a guy'.
  • (9) This part will be knocked down next year; they have already started opposite."
  • (10) I see myself in exactly the same situation as I saw myself yesterday, though obviously with the bitter disappointment of the failure of being knocked out.
  • (11) "There's nothing better than when the Grammys can rock out, and to have these artists all together on one stage, doing a number that, when they presented it to us, knocked us out, is going to turn out to be one of those Grammy moments that people talk about for a long time.
  • (12) Hester also pledged that customers from other banks will be repaid for 'knock-on' costs after they were left out of pocket by an IT failure that sent 20m transactions awry.
  • (13) Whether it's voting on the day, knocking on doors, making phone calls or speaking to friends and family, the silent majority should feel confident in speaking up.
  • (14) Cooled by a floor fan, nurses, doctors and support staff in blue scrubs move through the small anteroom next to the isolation ward to juggle the needs of the desperately ill patients inside as a stream of people knock on the canvas door asking for updates on their loved ones.
  • (15) We’ve sent out all the boards and there’s still loads of people flooding in, we don’t know what to do.’ It happened in Leeds North West, too – they started the day, they had so many activists that they went: ‘Right, let’s scrap our whole strategy, we’re going to just print off the electoral register instead’ – and rather than focusing on likely Labour voters, which is what you would normally do, they knocked on all the doors on the electoral register – that’s unheard of.” The seat saw a 14% swing to Labour, overturning a Lib Dem majority of almost 3,000 and replacing it with a 4,000 Labour lead.
  • (16) Offers worth £20m and £26m have been flatly rejected by Everton since mid-July, with a third of around £30m also knocked back last week.
  • (17) A protester is knocked back by a police water cannon as riot police advance towards Gezi Park.
  • (18) Chelsea , however, will not be too concerned if this match is added to the long list of games that is used to knock José Mourinho's ploys of conservatism and, ultimately, it is proven to be a valuable result.
  • (19) You are hunting for signs of the assembly of injuries - a broken nose, knocked-out teeth, fractured eye socket - incurred by falling face-first down a fire escape in Michigan while high on crystal meth, crack cocaine and cheap wine.
  • (20) On election day, we’ll have 6,000 campaign volunteers knocking on doors.

Ping


Definition:

  • (n.) The sound made by a bullet in striking a solid object or in passing through the air.
  • (v. i.) To make the sound called ping.

Example Sentences:

  • (1) Crisis engulfs Gabon hospital founded to atone for colonial crimes Read more At least seven people died and more than 1,000 were arrested in violent protests following the announcement of the election result earlier this month, which the leader of the opposition, Jean Ping, said Bongo, the incumbent, had rigged.
  • (2) It is a waste of taxpayer’s money.” A third critic wrote: “What China’s National Football Team gives its fans is decades of consistent disappointment.” Some disillusioned fans called for Team China’s manager, Gao Hongbo, to be sacked and replaced with Lang Ping, the revered coach of China’s female volleyball team.
  • (3) The kinetic data are compatible with a tert-uni ping-pong mechanism, as in the case of the 'classical' glutathione peroxidase (EC 1.11.1.9).
  • (4) Hu Ping, a US-based editor and friend of Liu, asked why the international community was not doing more to secure his release.
  • (5) Initial-velocity kinetic studies indicate the enzyme acts by a ping-pong mechanism.
  • (6) Initial velocity and isotope exchange studies confirmed that the over-all reaction, like that catalyzed by pyruvate carboxylase purified from rat liver and chicken liver, was a nonclassical Ping Pong Bi Bi Uni Uni sequence with ATP and HCO3-binding randomly in the Bi Bi partial reaction.
  • (7) The asymptotic kinetics of lipoamide oxidoreductions switch between the ping pong and ordered mechanisms by varying pH of the reactions.
  • (8) The assurances we are getting from those that are protecting him is that he is not far from Bamako," Ping said.
  • (9) Penetration of these drugs into perforated ping pong balls implanted intraperitoneally in rabbits was studied.
  • (10) Rare is the interview that concludes with the subject pinging one’s bra strap.
  • (11) The results obtained were consistent with a ping-pong or substitution mechanism.
  • (12) Since each catalytic cycle step is irreversible, the data fit a peroxidase ping-pong mechanism rather than an ordered bi-bi ping-pong mechanism.
  • (13) And then, proving that in the celebrity world of self-abasement there really is no such thing as "bottoming out", Shane started tweeting Ping Pong, otherwise known as Elizabeth Hurley's parrot Why has Australia not staged an intervention?
  • (14) It seems most probable that, as previously suggested by others for Ts, eIF-2B effectively catalyses an exchange reaction through a "ping-pong" type mechanism.
  • (15) Right up until the 79th minute, when the substitute Ramires pinged a 25-yard shot beyond Tim Krul, Chelsea were unconvincing.
  • (16) Such distension results in an area of tympanic resonance or ping.
  • (17) Initial velocity studies indicate that the enzymatic reaction proceeds by a Ping-Pong mechanism.
  • (18) This reaction pathway is compared with the double displacement (Ping Pong) mechanisms that have previously been described for pyruvate carboxylases from other sources.
  • (19) The wild-type enzyme and Y177F mutant displayed ping-pong kinetics, but the Y177S and Y177G mutants appeared to have switched to an ordered sequential mechanism.
  • (20) But I don’t think [Lords chief whip] Ben Stoneham is going to be very accommodating to anyone.” Brexit weekly briefing: article 50 moves closer but EU dashes divorce deal hopes Read more Labour has promised no “extended ping pong” as it does not want to frustrate the timetable for triggering article 50, but it has laid eight amendments on issues from EU nationals to quarterly reporting to parliament about the Brexit process.

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