堂々
どうどう · doudou · JLPT N1 · na-adj
magnificent
🏯 堂 = grand hall; the repeat mark 々 doubles it, so 堂々 = hall-worthy grandeur, magnificent
々 is a repeat mark that doubles the character before it. 堂 means a grand hall or temple, so 堂々 describes a bearing as stately and dignified as a great hall.
堂 — earth 土 + phonetic 尚
A semantic-phonetic compound: 土 ('earth/ground') gives the meaning, while 尚 supplies the sound. It originally referred to a raised earthen platform or the main hall of a building built on such a foundation. From there it broadened to mean 'hall', 'main room', and by extension formal gatherings or halls of learning.