What's the difference between knock and tap?

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.

Tap


Definition:

  • (v. t.) To strike with a slight or gentle blow; to touch gently; to rap lightly; to pat; as, to tap one with the hand or a cane.
  • (v. t.) To put a new sole or heel on; as, to tap shoes.
  • (n.) A gentle or slight blow; a light rap; a pat.
  • (n.) A piece of leather fastened upon the bottom of a boot or shoe in repairing or renewing the sole or heel.
  • (n.) A signal, by drum or trumpet, for extinguishing all lights in soldiers' quarters and retiring to bed, -- usually given about a quarter of an hour after tattoo.
  • (v. i.) To strike a gentle blow.
  • (n.) A hole or pipe through which liquor is drawn.
  • (n.) A plug or spile for stopping a hole pierced in a cask, or the like; a faucet.
  • (n.) Liquor drawn through a tap; hence, a certain kind or quality of liquor; as, a liquor of the same tap.
  • (n.) A place where liquor is drawn for drinking; a taproom; a bar.
  • (n.) A tool for forming an internal screw, as in a nut, consisting of a hardened steel male screw grooved longitudinally so as to have cutting edges.
  • (v. t.) To pierce so as to let out, or draw off, a fluid; as, to tap a cask, a tree, a tumor, etc.
  • (v. t.) Hence, to draw from (anything) in any analogous way; as, to tap telegraph wires for the purpose of intercepting information; to tap the treasury.
  • (v. t.) To draw, or cause to flow, by piercing.
  • (v. t.) To form an internal screw in (anything) by means of a tool called a tap; as, to tap a nut.

Example Sentences:

  • (1) Tap the relevant details into Google, though, and the real names soon appear before your eyes: the boss in question, stern and yet oddly quixotic, is Phyllis Westberg of Harold Ober Associates.
  • (2) A time course study using serially tapped guinea pig peritoneal cells is described.
  • (3) In the UK the twin threat of Ukip and the BNP tap into similar veins of discontent as their counterparts across the English channel.
  • (4) If you worship money and things - if they are where you tap real meaning in life - then you will never have enough.
  • (5) In order to clarify the development of mandibular movements associated with growth and development of the stomatognathic system, we compared the mandibular movements of children with normal occlusion at different Hellman's dental age between IIA and IIIB, during tooth tapping movements using the following 7 different kinds of frequency; ad lib.
  • (6) We examined the MLS, a motor performance test, in an extended form including assessment of "tapping" regularity for its practicability in therapy control of Parkinson's disease.
  • (7) We conclude that routine use of Golytely is preferable to methods involving catharsis and standard tap water enemas for barium enema examination, on the grounds that it is equally effective, yet more convenient for patients and for the radiology department, and reduces total costs.
  • (8) The surgical treatment was initiated with percutaneous subdural tapping which was repeated periodically, if indicated, for 2 weeks.
  • (9) The onset of tolerance to morphine analgesia was studied in 34 female Wistar rats immediately after they drank a dextrose-saccharin cocktail or tap water for 6 or 24 hours.
  • (10) Painless recovery of radiopaque substances after positive contrast myelography is often difficult, especially if the initial spinal tap is not made precisely in the midline.
  • (11) It’s about state sovereignty.” The BLM’s retreat vindicated his stance, he said, tapping a copy of the US constitution which he keeps in a breast pocket.
  • (12) Never leave a tap dripping - it can waste up to four litres a day.
  • (13) His balancing pole swayed uncontrollably, nearly tapping the sides of his feet.
  • (14) The power users and early adopters of these apps, the ones you're most likely to see tapping their thumbs over a tiny screen, are under 25.
  • (15) Der Spiegel magazine reported on Friday that Germany’s bid committee had tapped into a slush fund of €6.7m to buy votes at world football’s governing body Fifa.
  • (16) Past studies have shown that in normal non-depleted cats, somatosensory stimuli (forepaw tap) evoke both complex and simple spike responses.
  • (17) Citing information gathered from "intelligence services, witnesses and phone taps" he named the Liberal Democratic party of Russia (LDPR), an ultra-nationalist party in Russia's Duma.
  • (18) Dortmund seemed certain to score after Reus and Grosskreutz swapped passes on the edge of the area and Reuz tapped the ball into the path of Gundogan, charging in to meet it five yards out.
  • (19) While you can buy commercial formulations, I have always found that tap water, a cup of strong black tea, and some lemon juice provide enough nutrients for a lovely fermentation.
  • (20) This study investigates the mechanism of activation via the TAP molecule.

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