The setting or background of a historicalevent.The president spoke outside the brick exterior of the firehouse for Ladder Company 10 and Engine Company 10, against the backdrop of a 56-foot-long bronze bas-relief depicting the towers in flames. — New York Times
2012, May 9, John Percy, Birmingham City 2 Blackpool 2 (2-3 on agg): match report, Blackpool’s aggregate victory ensures Birmingham are now preparing for a potential summer of change. Manager Chris Hughton has been operating against a backdrop of financial uncertainty all season and last night Peter Pannu, the vice-chairman, announced that the club’s accounts would finally be published next week, and that a new investor had been identified.
Verb
(transitive) To serve as a backdrop for.a brilliant sunset backdropping the famous skyline