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

鍬入れ式[kuwaireshiki] ground-breaking ceremony
オギノ式[oginoshiki] Ogino method
サイクルアンドライド方式[saikuruandoraidohoushiki] cycle and ride system
シーアンドエア方式[shiiandoeahoushiki] sea and air system
シーリング方式[shiiringuhoushiki] ceiling system

シップエア方式[shippueahoushiki] ship air system
スキャンロン方式[sukyanronhoushiki] Scanlon plan
違式[ishiki] informality
一括式[ikkatsushiki] batch mode
一式[isshiki] complete set

安全期[anzenki] safe period
暗黒期[ankokuki] eclipse period
一期[ichigo] one's life time
一期[ikki] one term
一期一会[ichigoichie] once-in-a-lifetime encounter (hence should be cherished as such)

一周期[isshuuki] period (in astronomy)
一定期間[itteikikan] fixed interval
延期[enki] postponement
延期になる[enkininaru] to be postponed
沖積期[chuusekiki] alluvial period