これと同じ[koretoonaji] the same as this
と同じ様に[toonajiyouni] in the same way as
安定同位体[anteidouitai] stable isotope
異句同音[ikudouon] in concert
異口同音に[ikudouonni] in one voice

異同[idou] difference
一口同音[ikkudouon] reading in unison
一視同仁[isshidoujin] loving every human being with impartiality
一心同体[isshindoutai] being one in body and soul
一同[ichidou] all present

威名[imei] fame
異名[imyou] another name
一名[ichimei] one person
英名[eimei] fame
駅名[ekimei] station name

汚名[omei] stigma
音名[onmei] names of musical notes
下名[kamei] undermentioned
仮名漢字変換[kanakanjihenkan] kana-kanji conversion (on a computer, etc.)
仮名使い[kanazukai] kana orthography

異姓[isei] different surname
下姓[geshou] person of humble birth
改姓[kaisei] changing one's family name
旧姓[kyuusei] one's former (maiden) name
姓氏[seishi] full name

姓名[seimei] full name
種姓[sujou] birth
俗姓[zokushou] secular surname (of a priest)
他姓[tasei] another surname