If you need some prompting, here are three uses related to development, agriculture, and the work of environmental author Derrick Jensen.
"Sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs." United Nations Brundtland Commission, Our Common FutureNow you tell us in as long or short a statement as you'd like. Maybe you have strong notions or are totally confused. We want to know. In a comment below or an email to firstname.lastname@example.org, answer the question: "What does sustainability mean to you?"
"Sustainable agriculture integrates three main goals--environmental health, economic profitability, and social and economic equity." University of California - Davis, "What is Sustainable Agriculture?"
"The word “sustainable”… would apply to some action that can be done more or less forever, which means an action (or a way of life) that at the worst does not harm one’s land-base, and more realistically improves one’s land-base on the land-base’s own terms.” Derrick Jensen, Dreams