strike upverb

• 1

  To start something with somebody else, such as a conversation or relationship.

  • To make him feel welcome, she struck up a conversation with the newly arrived guest.
  • He struck up a friendship with Redford that was to last for many years.
• 2

  To start something, usually playing live music.

  • The band struck up and everyone started to dance.
  • The bride entered the church just as the "Wedding March" struck up.
• 3

  To raise (as sheet metal), in making dishes, pans, etc., by blows or pressure in a die.