Le troisieme dessous is the lowest cellar under the stage at the Opera where the machinery is kept and men stay who work it, whence the footlights are raised, the ghosts, the blue-devils shot up from hell, and so forth.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "troisieme" in a variety of sentences. We hope that you will now be able to make sentences using this word.
