塊かい炭たんかいたんMeanings1nounlump charcoal; lump coalRefers to charcoal or coal in solid, chunky pieces rather than powder or briquettes. Used in contexts like fuel, grilling, or industrial materials.バーベキューには塊かい炭たんを使つかうと火ひ持もちがいい。Using lump charcoal for a barbecue gives a longer-lasting fire.