安全[anzen] safety
安全域[anzeniki] safety margin
安全運転[anzenunten] safe driving
安全器[anzenki] safety device
安全期[anzenki] safe period

安全教育[anzenkyouiku] safety education
安全性[anzensei] safety
安全対策[anzentaisaku] safety measure
安全第一[anzendaiichi] safety first
安全地帯[anzenchitai] safety zone

亜成層圏[aseisouken] substratosphere
漢字文化圏[kanjibunkaken] countries which use Chinese characters
岩石圏[gansekiken] lithosphere
気圏[kiken] atmosphere
共栄圏[kyoueiken] co-prosperity sphere

共産圏[kyousanken] communist bloc
極地圏[kyokuchiken] polar regions
圏外[kengai] outside range
圏内[kennai] within the sphere

安い[yasui] cheap
安っぽい[yasuppoi] cheap-looking
安らか[yasuraka] peaceful
安らぎ[yasuragi] peace (of mind)
安んじる[yasunjiru] to be contented

安易[ani] easy
安穏[annon] peace
安価[anka] low price
安臥[anga] quiet rest
安楽[anraku] ease