膀 bǎng / bàng / pāng / páng — upper arm; wing; to flirt; puffed (swollen); bladder
鸟儿张开翅膀,飞向远方。Niǎo ér zhāng kāi chì bǎng, fēi xiàng yuǎn fāng.The bird spreads its wings and flies into the distance.
Common words: 肩膀 (jiān bǎng)、翅膀 (chì bǎng)、膀子 (bǎng zi)