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

同じ穴の狢[onajiananomujina] (villains) of the same stripe

狢藻[majinamo] waterwheel plant (Aldrovanda vesiculosa)

けつの穴[ketsunoana] anus
横穴[yokoana] cave
下穴[shitaana] pilot hole
穴だらけにする[anadarakenisuru] to fuck

穴凹[anaboko] hole
穴あけ器[anaakeki] (hole) punch
穴居[kekkyo] cave dwelling
穴居人[kekkyojin] cave dweller