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

危坐[kiza] sitting up straight
胡坐[agura] sitting cross-legged (i.e. Indian style)
胡坐をかく[agurawokaku] to sit cross-legged
坐り込む[suwarikomu] to sit down (and bask)
坐る[suwaru] to sit

坐禅[zazen] zazen (seated Zen meditation, usu. in a cross-legged position)
坐蒲団[zabuton] zabuton (flat floor cushion used when sitting or kneeling; usu. rectangular)
坐敷[zashiki] tatami room
坐薬[zayaku] suppository
単坐機[tanzaki] single-seated plane