Something from which other things extend; a foundation.
User Defined Definitions
"installation from which a military force initiates operations"
"lowest support of a structure"
"a place that the runner must touch before scoring"
"the bottom or lowest part"
"a lower limit"
"the fundamental assumptions from which something is begun or developed or calculated or explained"
"a support or foundation"
"any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water"
"the bottom side of a geometric figure from which the altitude can be constructed"
"the most important or necessary part of something"
"the place where you are stationed and from which missions start and end"
"a terrorist network intensely opposed to the United States that dispenses money and logistical support and training to a wide variety of radical Islamic terrorist groups; has cells in more than 50 cou"
"the stock of basic facilities and capital equipment needed for the functioning of a country or area"
"the principal ingredient of a mixture"
"a flat bottom on which something is intended to sit"
"a relation that provides the foundation for something"