What is shorting as a way of investment?

There are of course many different tactics and techniques that are used in order to invest into any currency or stock, be that a cryptocurrency, a forex currency or even the stock market. There was a concept that i came across recently that is call ‘short’ referring to investing in an asset. From my research it seems that this is when you make a specific type of investment where you actually benefit when the price drops. How does this work? Can anyone shed some light on this perhaps?