jungle gym vs trellis

jungle gym

noun
  • A play structure designed for children to climb on, traditionally constructed as a frame of metal bars as introduced in 1920. 

trellis

noun
  • An outdoor garden frame that can be used to grow vines or other climbing plants. 

  • A kind of graph, used in communication theory and encryption, whose nodes are ordered into vertical slices by time, with each node at each time connected to at least one node at an earlier and at least one node at a later time. 

  • An outdoor garden frame that can be used for partitioning a common area. 

verb
  • To train or arrange (plants) so that they grow against a trellis. 

How often have the words jungle gym and trellis occurred in a corpus of books? (source: Google Ngram Viewer )