Neutralise is a term used to describe the process of counteracting or destroying something. It can be used to describe a variety of situations, such as reducing the effects of a chemical reaction, or eliminating a threat. The two crossword solutions for this term are 'COUNTERACT' (10 letters) and 'DESTROY' (7 letters). Counteracting something means to take action to reduce or eliminate its effects, while destroying something means to completely eliminate it. Both of these actions can be used to neutralise a situation.