1The government has set aside a vast tract of land for the development of a new national park.
2The philosopher's magnum opus was a lengthy tract that critiqued the dominant ideologies of the time.
3Agricultural subsidies have been instrumental in maintaining the economic viability of this rural tract.
4The fertile tract of land along the river has been used for farming for centuries.
5There is a long tradition of writing tracts on moral philosophy, from Plato's dialogues to modern treatises on ethics.