A means of subsisting, especially means barely sufficient to maintain life.(noun)
Something that has real or substantial existence.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "subsistence" in a sentence
"“This may suggest a climatic change and or a shift in subsistence strategies.”"
"Child labor is employed in subsistence agriculture, in the household, or in the urban informal sector."
"At this rate of increase, provided that subsistence is not overtaken, a century from now the population of"