› [C or U] the time at which an activity or event starts or happens, or is planned to start or happen: Timing and location are crucial when opening a new business.the timing of sth The timing of the plant manager's departure came ahead of an investigation into safety management at the site. › [C] the length of time an activity or event takes, or is planned to take: The job sheet includes data and precise timings for every stage of the job. › [U] the fact of doing something at the right time, or the ability to do this: bad/good/perfect timing There is a risk of bad timing - investing a lump sum just before prices fall.a matter/question/sense of timing Finding the right solution to the problem is partly a question of timing. Even fund managers can find it hard getting the timing right when it comes to making investment decisions.