Definition of "Base" :
noun: a support or foundation
"The base of the lamp."
noun: a place that the runner must touch before scoring
noun: (electronics) the part of a transistor that separates the emitter from the collector
noun: installation from which a military force initiates operations
"The attack wiped out our forward bases."
noun: a flat bottom on which something is intended to sit
"A tub should sit on its own base."
noun: the principal ingredient of a mixture
"Glycerinated gelatin is used as a base for many ointments."
noun: lowest support of a structure
"It was built on a base of solid rock."
noun: the stock of basic facilities and capital equipment needed for the functioning of a country or area
"The industrial base of Japan."
noun: the fundamental assumptions from which something is begun or developed or calculated or explained
noun: (linguistics) the form of a word after all affixes are removed
noun: a lower limit
noun: 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 countries
noun: the place where you are stationed and from which missions start and end
noun: (anatomy) the part of an organ nearest its point of attachment
"The base of the skull."
noun: the bottom or lowest part
"The base of the mountain."
noun: (numeration system) the positive integer that is equivalent to one in the next higher counting place
noun: the most important or necessary part of something
noun: the bottom side of a geometric figure from which the altitude can be constructed
"The base of the triangle."
noun: any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water
"Bases include oxides and hydroxides of metals and ammonia."
noun: a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)
verb: use as a basis for; found on
"Base a claim on some observation."
verb: use (purified cocaine) by burning it and inhaling the fumes
verb: situate as a center of operations
"We will base this project in the new lab."
adjective: debased; not genuine
"An attempt to eliminate the base coinage."
adjective: having or showing an ignoble lack of honor or morality
"That liberal obedience without which your army would be a base rabble."
adjective: of low birth or station (base' is archaic in this sense)
"Baseborn wretches with dirty faces."
adjective: serving as or forming a base
"The painter applied a base coat followed by two finishing coats."
adjective: not adhering to ethical or moral principles
"Base and unpatriotic motives."
adjective: (used of metals) consisting of or alloyed with inferior metal
"Base coins of aluminum."