The term weight in Drupal is used to order nodes. Nodes with lower weight will be at top of the list while nodes with heavier weight will be at lower position.

In Drupal, the “weight” refers to a numerical value assigned to elements such as blocks, nodes, or menu items to control their ordering on a page. Lower weights are positioned before higher weights. For instance, if two blocks have weights of 0 and 10 respectively, the block with weight 0 will appear before the one with weight 10. Weight provides a simple mechanism for administrators to control the arrangement of various components within a Drupal site without needing to manually specify precise positions.