melt
The Spanish term 'fundir' translates to 'melt' in English. This means to make or become liquefied by heat. It can refer to substances such as chocolate, butter or metal becoming liquid due to high temperatures. It may also be used metaphorically, to describe feeling a very intense, overwhelming emotion.
You're going to burn out the engine if you keep this up.
This phrase is used to warn someone that their actions will lead to severe consequences, in this case, it refers to possibly damaging a car's engine due to misuse or overuse.
The chocolate is going to melt when heated.
In this context, 'fundir' is used to indicate the process of melting something, for example, chocolate, when it is heated.
We can pool (merge) our resources to buy a house.
This phrase uses 'fundir' in the sense of combining or merging resources or efforts in order to achieve a common goal.