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

愛郷[aikyou] love for one's hometown
愛郷心[aikyoushin] love of one's hometown
異郷[ikyou] strange land
家郷[kakyou] one's homeland
郷に入っては郷に従え[gouniittehagounishitagae] when in Rome, do as the Romans do

郷軍[gougun] veteran
郷愁[kyoushuu] nostalgia
郷土[kyoudo] native place
郷土小説[kyoudoshousetsu] local story
郷土料理[kyoudoryouri] local cuisine