prerequisites

/P R IH0 R EH1 K W AH0 Z AH0 T S/
noun
  1. 1

    Something that must be gained in order to gain something else

    โ€œA degree is a prerequisite for entry into this profession.โ€

  2. 2

    In education, a course or topic that must be completed before another course or topic can be started. May be colloquially referred to as a prereq.

    โ€œAlgebra is typically a prerequisite for physics.โ€

Source: https://en.wiktionary.org/wiki/prerequisite, https://en.wiktionary.org/wiki/prerequisites