In making sense of the world, we typically cooperate, join forces, and draw on one another’s competence and expertise. A group or community in which there is a well-functioning division of cognitive-epistemic labor can achieve degrees of understandingUnderstandingdegrees of understanding that a single agent who relies exclusively on her own capacities would probably never achieve. However, is understanding also collective? I.e., is understanding something that can be possessed by a group or community? In this chapter, I argue that the answer to these questions should be “yes”. We have reason to enlarge our ontological picture and to welcome collective states of understanding. This is mainly because there are phenomena and dynamics happening at the group level that cannot be fully accounted for from within a strictly individualistic picture.