From Longman Dictionary of Contemporary Englishburn/raze something to the groundburn/raze something to the groundto destroy a city, building etc completely by fire, bombs etc The city of Tortona was burnt to the ground. → ground
Examples from the Corpus
burn/raze something to the ground• They then torched the building, burning it to the ground.• The city continued to thrive until a massive earthquake razed it to the ground in 749AD. 