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

犬薄荷[inuhakka] catnip (Nepeta cataria)
愛犬[aiken] pet dog
愛犬家[aikenka] lover of dogs
一犬[ikken] one dog
狂犬[kyouken] mad dog

狂犬病[kyoukenbyou] rabies
軍犬[gunken] war dog
軍用犬[gunyouken] war dog
犬猿の仲[kenennonaka] loggerheads

狛犬[komainu] (stone) guardian lion-dogs at Shinto shrine

狛笛[komabue] Korean flute (horizontal bamboo flute with six holes; highest-pitched flute used in gagaku)