close friend, bosom buddy / crony, chum

徹子, 哲子, 迭子, 鉄子, 鐵子, 天津子, 天都子: a female given name

(chiefly women's speech) first person singular pronoun: I, me

鉄: iron (metal)

哲: a male given name

哲理: philosophical principles

carriage of the hand

哲也: a male given name / 徹也: a male given name / 鉄也: a male given name / 哲哉: a male given name / 徹哉: a male given name

哲夫, 哲男, 哲朗, 哲雄, 哲緒, 鉄男, 鉄雄, 鉄緒: a male given name / 徹男, 徹雄, 徹緒, 哲生: a male given name

哲司, 鉄治, 哲二, 哲志: a male given name