A cohesion is a group of things or people who work or form together to create a unit or a whole. In a scientific context, a cohesion is when different particles of the same substance stick together.

1. With so many players missing through injury, the team lacked cohesion and were easily beaten.
2. Someone should manage the group so we have some cohesion and are clear about who is doing what.

1. There was a great deal of cohesion among the group. They were all focused on completing the task and worked extremely well together.
2. If we are to grow as a business, we need to develop and implement a cohesive strategy for expanding into new markets.