九寸五分[kusungobu] dagger
弦楽五重奏曲[gengakugojuusoukyoku] string quintet
五つ[itsutsu] five
五つ子[itsutsugo] quintuplets
五悪[goaku] the five sins in Buddhism (murder, theft, adultery, falsehood and drink)

五音々階[goononkai] pentatonic scale
五戒[gokai] the five precepts (prohibitions against killing, theft, sexual misconduct, lying and intemperance)
五官[gokan] the five sense organs
五感[gokan] the five senses

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

くる病[kurubyou] rickets
アルツハイマー病[arutsuhaimaabyou] Alzheimer's disease
ケーソン病[keesonbyou] caisson disease
ハンセン病[hansenbyou] Hansen's disease
マレック病[marekkubyou] Marek's disease

悪病[akubyou] bad health
胃病[ibyou] stomach trouble
遺伝病[idenbyou] hereditary (genetic) disease
いもち病[tounetsubyou] rice blight
疫病神[yakubyougami] jinx (lit: god of pestilence)