先ずは

まずはmazuha

adverb

  1. first of all
  2. to begin with
  3. before anything else
  4. probably
  5. most likely
  6. almost certainly
  7. virtually
  8. more or less (satisfactory)

Kanji in this word

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences