ぴかぴか光る[pikapikahikaru] to sparkle
旭光[kyokkou] rays of the rising sun
威光[ikou] power
稲光[inabikari] (flash of) lightning
曳光弾[eikoudan] tracer bullet

栄光[eikou] glory
円光[enkou] halo
炎光[enkou] flame
黄道光[koudoukou] zodiacal light
可視光線[kashikousen] visible ray

犬薄荷[inuhakka] catnip (Nepeta cataria)
意志薄弱[ishihakujaku] weak-willed
佳人薄命[kajinhakumei] beauties die young
極薄[kyokuhaku] ultrathinness
軽薄[keihaku] frivolous

軽佻浮薄[keichoufuhaku] frivolous and thoughtless
厚薄[kouhaku] thickness
精神薄弱[seishinhakujaku] mental retardation
精薄[seihaku] mental retardation (pejorative)
浅薄[senpaku] shallowness