御三時[osanji] three-o'clock snack
三鞭酒[shanpen] champagne
球面三角法[kyuumensankakuhou] spherical trigonometry
胸三寸[munesanzun] heart
元三[ganzan] New Year's period (January 1st to 3rd)

五十三次[gojuusantsugi] the 53 Toukaidou stages
向こう三軒[mukousangen] one's next three neighbors
降三世明王[gouzanzemyouou] Trailokyavijaya Vidya-raja
再三[saisan] again and again
再三再四[saisansaishi] repeatedly

奸計[kankei] trick
佞奸[neikan] treacherous
奸物[kanbutsu] cunning man
奸悪[kanaku] wickedness
奸策[kansaku] shrewd (dirty) trick

奸知[kanchi] cunning
奸佞邪智[kanneijachi] wiles and cunning
奸黠[kankatsu] cunning
君側の奸[kunsokunokan] someone who curries favor with their master while secretly plotting against him