安全保障[anzenhoshou] security guarantee (e.g. military security, network security, etc.)
安全保障条約[anzenhoshoujouyaku] US-Japan Security Treaty
安保[anpo] US-Japan Security Treaty
医療保険[iryouhoken] medical-care insurance
火災保険[kasaihoken] fire insurance

火保ち[himochi] fire-holding qualities
過保護[kahogo] overprotective
確保[kakuho] guarantee
環境保護論者[kankyouhogoronsha] environmentalist
機密保護[kimitsuhogo] security (e.g. data, password, etc.)

いとも簡単に[itomokantanni] very easily
一了簡[ichiryoukan] at one's discretion
簡易[kani] simplicity
簡易化[kanika] simplification
簡潔[kanketsu] brevity

簡素[kanso] simplicity
簡素化[kansoka] simplification
簡体字[kantaiji] simplified Chinese character
簡短[kantan] simple
簡単に言うと[kantanniiuto] simply put