月底

yuèdǐ
end of the month

CEDICT

Entry Composition

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

classifiers: 個, 輪
2 底 dǐ
  1. bottom; base
  2. background; foundation
  3. copy (of a manuscript or receipt etc) kept as a record
  4. (suffix) end of a year or month
  5. (math.) radix; base (abbr. for 底數 dǐshù)