What is another word for burn black?
Pronunciation: [bˈɜːn blˈak] (IPA) 
The phrase "burn black" is often used to describe the outcome of destructive heat on an object, material or substance. There are several other commonly used synonyms for this phrase, including char, scorch, singe, sear or blacken. These words all convey a sense of damage or destruction caused by intense heat. Another synonym for burn black is carbonize, which implies that the object in question has been transformed into carbon through the heating process. Regardless of the specific synonym used, each communicates the idea of a transformational process where the original object has been altered or damaged through exposure to high temperatures.
