食堂【しょくどう】
dining room, dining hall, cafeteria, canteen, messroom, restaurant, eatery, snack bar, diner
講堂【こうどう】
auditorium, lecture hall
堂々【どうどう】
magnificent, grand, impressive, dignified, majestic, imposing, stately, fair, square, open, unashamed, brazen, grandly, boldly, confidently, fairly, squarely, unreservedly, brazenly
公会堂【こうかいどう】
town hall, public hall
聖堂【せいどう】
(Confucian) temple, church, sanctuary
本堂【ほんどう】
main temple building, nave
国会議事堂【こっかいぎじどう】
parliament building, parliament house, National Diet Building (Japan), (US) Capitol, Houses of Parliament, National Assembly building