月初

yuèchū
  1. start of month
  2. early in the month

CEDICT

Entry Composition

1 月 yuè
  1. moon
  2. month
  3. monthly

classifiers: 個, 輪
2 初 chū
  1. at first
  2. (at the) beginning
  3. first
  4. junior
  5. basic