Pronunciation: (sub-sist'),[key] —v.i. 1. to exist; continue in existence.
2. to remain alive; live, as on food, resources, etc.
3. to have existence in, or by reason of, something.
4. to reside, lie, or consist (usually fol. by in).
5. Philos. a. to have timeless or abstract existence, as a number, relation, etc.
b. to have existence, esp. independent existence.
—v.t. to provide sustenance or support for; maintain.