The concepts and technologies disclosed herein are directed to the creation of dynamic language for private metaverse. According to one aspect disclosed herein, a user device can set up a private metaverse. The user device can invite, based upon an input provided by a user, at least one member to join a private group that includes the user. The user device can create a dynamic language for use by the private group while the private group is within the private metaverse. The dynamic language can be based upon input from the user or the user and one or more members of the private group.