› FINANCE, STOCK MARKET used to describe the situation in which you buy and keep shares, etc. because you expect them to rise in value and make a profit: Nobody wants to be long on stocks over a weekend of economic uncertainty, because stocks may fall sharply in value when markets reopen on Monday.
do/have/work long hours/days › WORKPLACE to work more hours each day than people usually do: In spite of the New Deal, junior doctors are still working dangerously long hours. → See also long-hours culture