１月[ichigatsu] January
ひと月[ichigetsu] one month
下弦の月[kagennotsuki] waning moon
何ヶ月[nankagetsu] how many months?
何月[nangatsu] what month

佳月[kagetsu] good month
か月[kagetsu] (number of) months
花鳥風月[kachoufuugetsu] beauties of nature
各月[kakugetsu] every month
隔月[kakugetsu] every second month

月賦[geppu] monthly installment (instalment)
天賦[tenpu] natural talent
天賦人権[tenpujinken] natural rights of man
年賦[nenpu] annual installment
賦課[fuka] levy

賦税[fuzei] taxation
賦役[fueki] slave labour
賦与[fuyo] being endowed with (e.g. a gift)
分賦[bunpu] assignment
割賦[kappu] allotment