What's the difference between keystone and linchpin?
Keystone
Definition:
(n.) The central or topmost stone of an arch. This in some styles is made different in size from the other voussoirs, or projects, or is decorated with carving. See Illust. of Arch.
Example Sentences:
(1) If these is the case the Ir gene (genes) would be the Keystone for maintaining the preferential associations of some pseudoalleles in some haplotypes.
(2) Oil carried by Keystone will displace heavy crude from Venezuela, Nigeria and other countries that also contribute to global warming, Pourbaix said.
(3) The bill, voted through a panel of the house energy and power subcommittee, would compel Obama to over-rule demands for a further review of the project from the Environmental Protection Agency (EPA), and disregard local opposition to the Keystone XL pipeline from landowners along its 1,700-mile route.
(4) But two key Liberal positions, on the Keystone XL and on emissions reductions targets, put Trudeau out of step with Obama, who has made climate change the signature issue of his second term in the White House.
(5) Former hedge fund manager Tom Steyer took out television ads on Tuesday, the night of Obama's state of the union address , attacking Keystone XL, and other wealthy Democratic donors wrote open letters to the White House seeking to shut down the project.
(6) Now that the State Department has just released a final environmental impact report on Keystone XL, which appears to downplay the threat, and greatly increases the odds that the Obama administration will approve the project, I feel I must weigh in once again.
(7) Environmental activists opposed to the Keystone XL tar sands pipeline project protest outside the White House in Washington.
(8) On the campaign trail, however, Clinton had claimed it would be inappropriate to express her views on Keystone given her recent service in Barack Obama’s administration.
(9) The system should include two prehospital and two hospital levels, and the highest level being the keystone of the whole.
(10) A Nebraska court has signed off on the proposed route for the Keystone XL, bringing the controversial project a crucial step closer to reality after six years of legal and political fighting.
(11) The choice President Obama has faced in recent weeks – whether to approve the Keystone XL pipeline – has been framed as a choice between losing the support of environmentalists or alienating America's key ally, Canada.
(12) The company behind the Keystone XL pipeline has asked for its US permit application to be put on hold – a move that would leave the final decision on the controversial tar sands oil project to Barack Obama’s successor.
(13) What makes the Keystone XL pipeline different is the scale – and politics.
(14) One way TransCanada might get around what Clinton called the Keystone “distraction” and pump more tar sands crude into the US might be the Upland pipeline, which the Natural Resources Defense Council (NRDC) has termed a “mini Keystone” .
(15) The virions of CE group viruses (CE, Jamestown Canyon, Keystone, LAC, Melao, SSH, TVT, TAH viruses and South River, an unregistered virus) have three major viral polypeptides, designated G1, G2, and N.
(16) And we saw the Assad regime as the keystone in that arc.
(17) We look forward to the debate and ultimately a decision by the US administration to build Keystone XL,” the company said in a statement.
(18) Greenpeace UK energy campaigner Louise Hutchins said: “The pledge to end dirty coal that David Cameron seems to have casually dropped from his summit speech wasn’t just a footnote but the keystone of any serious policy to clean up Britain’s energy system.
(19) Also speaking at the fossil fuel conference in Houston, ExxonMobil chairman and chief executive Rex Tillerson called for the exploitation of Arctic oil and gas reserves and the building of the Keystone XL pipeline to bring oil from Canada’s tar sands to the US.
(20) This is absolutely not in our national interest.” The campaign against Keystone XL has become a national movement over the last three years, with environmental activists, Nebraska landowners and hedge fund managers all coming out against the project.
Linchpin
Definition:
(n.) A pin used to prevent the wheel of a vehicle from sliding off the axletree.
Example Sentences:
(1) Ferdinand says the state of Louis van Gaal’s defence is such that Stones would immediately become its linchpin but that the former Barnsley player may not be ready to dislodge John Terry or Gary Cahill from Chelsea’s backline.
(2) He might have done many more if he wasn’t a multi-millionaire and a linchpin of the economy in his home state of Nevada.
(3) His criteria for determining the national interest, the stated linchpin of his decision-making about launching a war, went unarticulated.
(4) Over the weekend, business leaders spoke to German newspapers to back Cryan’s efforts to turn around Deutsche, which is a linchpin of the national economy.
(5) While the congregation has been shrinking in recent years, United in Christ is a linchpin for the community offering free food on Wednesday afternoons.
(6) According to the New York Times , the American middle class – the linchpin of the country's phenomenal postwar economic growth – can no longer call itself the richest in the world.
(7) Insiders who spoke to the Journal allege that out of the 240 kinds of tests it currently performs, the “pinprick” technology lauded as the linchpin of their strategy was only used for a tiny fraction of its testing .
(8) Gareth Barry, one of the linchpins of the previous era, was not even on the bench.
(9) The current study provides a linchpin between the studies of adolescent suicide attempt rates and the studies reporting on percentages of adolescents who made suicide attempts.
(10) He also defended his record as mayor, which has been a linchpin of his potential presidential bid, while linking the recent events to a broader societal critique.
(11) Despite her reputation as an art house linchpin, Swinton has regularly appeared in genre fare.
(12) Stephens plays Rob, the linchpin of a group of young friends in the fictional village of Overton.
(13) The linchpin of oncologic statistics might well be thought to be classification based upon the hope that comparisons of natural history and treatment regimes could be compared and controlled worldwide.
(14) Cowell has become the king of prime-time TV in the US on the back of the phenomenal success of American Idol, where he is the linchpin of the judging panel.
(15) Platt was one of many overlooked linchpins of the grime scene, and Channel U was radical at a time when black British artists weren’t being readily supported on mainstream channels, radio or labels.
(16) The nurse manager is becoming a key player in hospitals' efforts to satisfy patient needs, hold down costs and maximize efficiency; indeed, this "linchpin" manager is being given authority over budgeting, capital equipment expenditures, employee evaluations and patient care outcomes.
(17) In the first weeks after Snowden disclosed the phone records mass collection to the Guardian, the NSA’s leadership publicly portrayed it as a linchpin to stop future terrorist attacks inside the US.
(18) With the WTO's broader Doha round negotiations at an impasse, delegates hope that an agreement on trade facilitation could serve as the linchpin in a pared-down global trade deal that negotiators are aiming to reach at a high-level meeting in Bali in December.
(19) Sampson in Johannesburg had become the linchpin of the Observer 's Africa coverage.
(20) The drama of that 1944 Democratic convention is one that Stone and Kuznick wrote as a Hitchcockian thriller in the late 1990s before deciding to make it, a decade later, the linchpin of their documentary.