What does the word grotto mean?

Usage examples for grotto

  1. We sat down in a charming grotto, and began styling each other papa and daughter, and allowing ourselves liberties which threatened to lead to danger. – The Memoires of Casanova, Complete The Rare Unabridged London Edition Of 1894, plus An Unpublished Chapter of History, By Arthur Symons by Jacques Casanova de Seingalt
  2. And that was a thing he was altogether likely to do, if he were to have more business in the grotto. – The Voodoo Gold Trail by Walter Walden
  3. The grotto constructed by the poet may still be seen near the railway station at Ware. – Hertfordshire by Herbert W Tompkins