from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Law Returnable or negotiable in kind or by substitution, as a quantity of grain for an equal amount of the same kind of grain.
- adj. Interchangeable.
- n. Something that is exchangeable or substitutable. Often used in the plural.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Able to be substituted for something of equal value or utility; interchangeable, exchangeable, replaceable.
- n. Any fungible item.
from The Century Dictionary and Cyclopedia
- Capable of being replaced by another in respect of function, office, or use.
- n. In the civil law, a thing of such a nature that it may be replaced by another of equal quantity and quality; a movable which may be estimated by weight, number, or measure, as grain or money.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. of goods or commodities; freely exchangeable for or replaceable by another of like nature or kind in the satisfaction of an obligation
- n. a commodity that is freely interchangeable with another in satisfying an obligation
Medieval Latin fungibilis, from Latin fungī (vice), to perform (in place of).(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin fungor "discharge a duty" and -ible "able to". (Wiktionary)