Round Room or Building With a Domed Roof
This page is the CodyCross answer for the clue below from World of Sounds, Group 1358, Puzzle 1 (Train Whistle).
Question is: Round Room or Building With a Domed Roof
and the answer is: ROTUNDA
Word Meaning:
ROTUNDA — (architecture) A round building, usually small, often with a dome.
Definitions from Wiktionary.