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

御守[omamori] charm
井守[imori] newt (esp. the Japanese fire belly newt, Cynops pyrrhogaster)
看守[kanshu] jailer
看守者[kanshusha] jailer
居留守[irusu] pretending to be out

見守る[mimamoru] to watch over
厳守[genshu] strict observance
固守[koshu] clinging
攻守[koushu] offense and defense
子守り[komori] babysitter

テロ攻撃[terokougeki] terrorist attack
応急攻撃[oukyuukougeki] hasty attack
攻め[seme] attack
攻める[semeru] to attack
攻め入る[semeiru] to invade

攻め滅ぼす[semehorobosu] to attack and overthrow
攻究[koukyuu] study
攻撃[kougeki] attack
攻撃ヘリコプター[kougekiherikoputaa] attack helicopter
攻撃開始線[kougekikaishisen] line of departure

加盟[kamei] participation
加盟国[kameikoku] member-nation
加盟者[kameisha] participants
加盟店[kameiten] participating store
軍事同盟[gunjidoumei] military alliance

三国同盟[sangokudoumei] triple alliance
盟う[chikau] to swear
同盟休校[doumeikyuukou] student strike
同盟軍[doumeigun] allied armies
同盟国[doumeikoku] ally (of another nation)