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

医学技術士[igakugijutsushi] medical technician
医学士[igakushi] Bachelor of Medicine
一言居士[ichigenkoji] person who is ready to comment on every subject
一士[isshi] private first-class (JSDF)
隠士[inshi] hermit

宇宙飛行士[uchuuhikoushi] astronaut
運転士[untenshi] driver
栄養士[eiyoushi] nutritionist
下士[kashi] noncommissioned officer
下士官[kashikan] non-commissioned officer

仇討[adauchi] vengeance
かたき討ち[katakiuchi] vengeance
討つ[utsu] to shoot (at)
検討[kentou] consideration
検討委員会[kentouiinkai] investigative commission

再検討[saikentou] re-examination
剿討[soutou] cleaning up
相討ち[aiuchi] simultaneously striking one another (in kendo, etc.)
尊王討幕[sonnoutoubaku] reverence for the emperor and the overthrow of the shogunate
討ち破る[uchiyaburu] to break