The phrase "to quash the speculation" means to put an end to or stop the guessing and rumors.
Sentences with «to quash the speculation»
Mr. Draghi's critique of comments by the U.S. Treasury secretary came as the eurozone central bank tried to quash speculation about an early end to its economic stimulus program. (nytimes.com)
Chelsea have been handed a major boost in their reported attempt to sign Borussia Dortmund star Marco Reus after his agent quashed speculation linking him to Real Madrid. (metro.co.uk)
The governor did not do much to quash speculation when he asked if he would support a primary run by his ally, Bronx Borough President Ruben Diaz Jr., against NYC Mayor Bill de Blasio in 2017. (nystateofpolitics.com)