Source of Pressure is a term that can refer to a variety of different situations. The crossword solutions for this term are PEER (4 letters), PEERS (5 letters), and PEERGROUP (9 letters). PEER is an individual who is at the same level as another, such as a colleague or classmate. PEERS is the plural form of PEER, referring to a group of individuals who are at the same level. PEERGROUP is a larger group of people who are all peers, such as a class or team. All three of these terms refer to a source of pressure, as peers can often put pressure on each other to perform or behave in certain ways.