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

朦朧[mourou] dim
朧げ[oboroge] vague
朧月[oborozuki] hazy moon (esp. on a spring night)
朧ろ月夜[oborozukiyo] misty, moonlit night
朧ろ夜[oboroyo] misty, moonlit night

朧昆布[oborokonbu] shredded tangle or kelp
酔眼朦朧[suiganmourou] (with) one's eyes blurred from drinking
意識朦朧[ishikimourou] being in a hazy state
朧雲[oborogumo] altostratus cloud