noun An outdoor garden frame that can be used for partitioning a common area.
noun An outdoor garden frame that can be used to grow vines or other climbing plants.
noun 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.
verb To train or arrange (plants) so that they grow against a trellis.