A cooperative apartment is a unique form of housing in which residents own shares in the building's cooperative corporation and have the right to occupy a specific unit. However, there are several other synonyms for cooperative apartments, including co-op, housing cooperative, co-housing, and shared ownership housing. Each of these terms refers to a housing arrangement where residents have a stake in the building's ownership and decision-making process. Some other related phrases include community land trusts, limited-equity housing cooperatives, and resident-owned communities. Whatever the terminology used, cooperative apartments offer an affordable and sustainable way for residents to live and thrive together.