› STOCK MARKET a large number of shares that are sold by one organization at a particular time: Deutsche Bank placed a block of six million shares at 781p. The shares were sold on the Toronto Stock Exchange in a block trade.
› ECONOMICS an official decision to stop something happening or continuing: a block on sth Lobbyists are calling for a block on bonuses to rail operators while their safety record is so poor.put/remove a block on sth The government has put a block on all arms sales to the country.
› PROPERTY a building consisting of several apartments, offices, etc.: There are four apartments in each block. a block of office buildings
on the block US › available to buy: She offers a beginner's guide to the newest pensions on the block. A few more newspapers may go on the block before the end of the year.
lay your head/neck on the block › to risk a bad thing happening to you, for example getting a bad reputation, by doing something or helping someone: Agency executives willing to lay their heads on the block in a pure results-driven agreement would be very brave.