introductorily

/ˌɪntrəˈdʌktərəli/
adverb
  1. In a way that serves as an introduction; as a first step or preliminary part.
    • The chapter introductorily outlines the main themes of the book.
    • The speaker introductorily thanked the audience before starting.
    • He introductorily explained the rules of the game.
Antonyms
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