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: illegitimate

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."