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

双節棍[nunchaku] nunchaku (two linked fighting sticks)
一双[issou] pair (esp. of folding screens)
一卵性双生児[ichiranseisouseiji] identical twins
双紙[soushi] written work (esp. a bound text, as opposed to a scroll)
自己双対[jikosoutsui] self dual

双刃[moroha] double-edged
双暗車[souansha] twin propellers
双殻類[soukakurui] bivalves
双眼[sougan] both eyes

家宝[kahou] heirloom
擬宝珠[giboshi] ornamental railing top
合成宝石[gouseihouseki] synthetic gems
国宝[kokuhou] national treasure
財宝[zaihou] treasure

三重宝冠[sanjuuhoukan] (papal) triple tiara
至宝[shihou] most valuable asset
七宝[shippou] the 7 treasures (gold, silver, pearls, agate, crystal, coral, lapis lazuli)
什宝[juuhou] treasured article
重宝がる[chouhougaru] to find useful

瑞西[suisu] Switzerland
瑞典[suweeden] Sweden
奇瑞[kizui] auspicious (good) omen
瑞瑞しい[mizumizushii] young (and lustrous)
瑞気[zuiki] good omen

瑞穂の国[mizuhonokuni] Japan, the Land of Abundant Rice
瑞兆[zuichou] auspicious sign
瑞祥[zuishou] auspicious sign
瑞雲[zuiun] auspicious clouds
瑞宝章[zuihoushou] Orders of the Sacred Treasure

印章[inshou] stamp
階級章[kaikyuushou] rank insignia
楽章[gakushou] (musical) movement
徽章[kishou] medal
旧章[kyuushou] ancient laws

勲章[kunshou] decoration
憲章[kenshou] charter
肩章[kenshou] shoulder strap
周章てる[awateru] to become confused (disconcerted, disorganized, disorganised)
校章[koushou] school badge