The term 'revolutionise' can be broken down into two crossword solutions: REFORM (6 letters) and CHANGE (6 letters). Revolutionise is a term that means to make a radical or drastic CHANGE, often in the form of a political or social upheaval. It is usually used to describe a dramatic shift in the way something is done or perceived. REFORM and CHANGE are both words that can be used to describe this process, but revolutionise implies a more drastic transformation.