A liquidator is the official appointed to close down a company that is finished — usually one that cannot pay what it owes. The liquidator takes control from the directors, sells off everything the company owns (buildings, machines, stock, even the name), and shares the money among the people the company owes, in an order the law sets. Then the company legally stops existing. It is a job title, so people say 'the liquidator', 'liquidators have been appointed', 'the case is now in the hands of a liquidator'. The word is business and legal English; you meet it in the news when a big firm collapses. The idea behind the name is worth seeing. 'Liquid' money is money you can move and spend right now. A liquidator turns things that are stuck — a warehouse, a fleet of trucks — into money that flows, so it can be handed out. That is the whole job in one image: making a company's stuck value liquid again. Two side notes. In American shop English, a 'liquidator' can also be a business that buys up dead stock cheaply and sells it on. And in violent slang, 'liquidate' can mean to kill someone — but 'liquidator' in the company sense has nothing to do with that.