In general terms, The Team is a reference to a cross-functional group of people that work on a project. The Team is typically optimized around seven team members (+/- 2).
In most Agile processes, we’ll use the phrase or term “The Team” to describe the group that is responsible for delivering a piece of functionality. The goal is to gain group ownership of commitments. Note that in this is a term primarily used with Scrum and other frameworks/approaches may still focus on the individual roles versus a general team.