瓦斯[gasu] gas
化粧煉瓦[keshourenga] ornamental tile
瓦解[gakai] collapse
瓦礫[gareki] rubble

丸瓦[marugawara] convex roof tile
天日瓦[tenjitsugawara] sun-dried brick
巴瓦[tomoegawara] comma-pattern tile
舗装煉瓦[hosourenga] paving brick

瓦礫[gareki] rubble
砂礫[sareki] pebbles
紙礫[kamitsubute] paper pellet
梨の礫[nashinotsubute] not getting a reply
飛礫[tsubute] stone thrown at somebody

礫岩[rekigan] conglomerate stone
火山礫[kazanreki] lapilli
雪礫[yukitsubute] snowball
闇夜の礫[yamiyonotsubute] aimless attempt