Split off Definition 1 of 2Pro Tip 1/3Group Departure Used when individuals leave a group to start another or to be alone. After the argument, a few members split off and formed their own team. Pro Tip 2/3Ideological Differences Often implies divergence in beliefs or goals within a group. The activists split off into two groups over disagreement about their strategies. Pro Tip 3/3Natural Division Can describe natural or organic separations, not just social or organizational. A large iceberg split off from the glacier and drifted away.