run-up

/R AH1 N AH1 P/
noun
  1. 1

    The approach run of a bowler before delivering the ball

  2. 2

    The approach run of a high jumper or other athlete in order to gather speed or momentum

  3. 3

    A period of time just before an important event.

    โ€œThe candidates were very nervous in the run-up to the election.โ€

  4. 4

    An increase in the value or amount of something

    โ€œEconomists expect a run-up of long-term interest rates.โ€

Source: https://en.wiktionary.org/wiki/run-up