Groups are collections of geometry and mesh entities. Groups can contain other groups. Groups provide a powerful capability for organizing and performing operations on multiple entities with minimal input. Groups can collect entities according to various criteria, such as position, size, or whether they are meshed. Performing an operation on a group is usually the same as performing that operation on all the entities in that group. The following describes the Group operations available in CUBIT:

There are several utilities in CUBIT which use groups as a means of visualizing output. These utilities are described elsewhere, but listed here for reference: