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

御陰[okage] grace (of God)
陰画紙[ingashi] (photographic) printing paper
陰萎[ini] impotence (sexual)
陰画[inga] (photographic) negative
陰核[inkaku] clitoris

陰気[inki] gloom
陰極[inkyoku] cathode
陰極線[inkyokusen] cathode rays
陰極線管[inkyokusenkan] cathode-ray tube