Definition of Base

Verb: base beys

Use as a basis for; found on
"base a claim on some observation";
- establish, ground, found
Situate as a centre of operations
"we will base this project in the new lab"
Use (purified cocaine) by burning it and inhaling the fumes
- free-base

Adjective: base (baser,basest) beys

Serving as or forming a base
"the painter applied a base coat followed by two finishing coats";
- basal
(used of metals) consisting of or alloyed with inferior metal
"base coins of aluminium"; "a base metal"
Not adhering to ethical or moral principles
"base and unpatriotic motives"; "a base, degrading way of life";
- immoral
Having or showing an ignoble lack of honour or morality
"that liberal obedience without which your army would be a base rabble";
- mean, meanspirited
Debased; not genuine
"an attempt to eliminate the base coinage"
[archaic] Of low birth or station
"base wretches with dirty faces";
- baseborn, humble, lowly
[archaic] Illegitimate
- baseborn [archaic]

Noun: base beys

(military) installation from which a military force initiates operations
"the attack wiped out our forward bases";
- base of operations
Lowest support of a structure
"it was built on a base of solid rock";
- foundation, fundament, foot, groundwork, substructure, understructure
A place that the runner must touch before scoring
"he scrambled to get back to the base";
- bag
The bottom or lowest part
"the base of the mountain"
(anatomy) the part of an organ nearest its point of attachment
"the base of the skull"
A lower limit
"the government established a wage base";
- floor
The fundamental assumptions from which something is begun, developed, calculated or explained
"the whole argument rested on a base of conjecture";
- basis, foundation, fundament, groundwork, cornerstone
A support or foundation
"the base of the lamp";
- pedestal, stand
A phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)
- nucleotide
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";
- alkali
The bottom side of a geometric figure from which the altitude can be constructed
"the base of the triangle"
The most important or necessary part of something
"the base of this drink is orange juice";
- basis
(numeration system) the positive integer that is equivalent to one in the next higher counting place
"10 is the base of the decimal system";
- radix
The place where you are stationed and from which missions start and end
- home
(linguistics) the form of a word after all affixes are removed
"thematic vowels are part of the base";
- root, root word, stem, theme, radical
The stock of basic facilities and capital equipment needed for the functioning of a country or area
"the industrial base of Japan";
- infrastructure
The principal ingredient of a mixture
"glycerinated gelatin is used as a base for many ointments"; "he told the painter that he wanted a yellow base with just a hint of green"; "everything she cooked seemed to have rice as the base"
A flat bottom on which something is intended to sit
"a tub should sit on its own base"
(electronics) the part of a transistor that separates the emitter from the collector
(usually plural) the office that serves as the administrative centre of an enterprise
"many companies have their home base in New York";
- headquarters, central office, main office, home office, home base

Noun: Base

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
- al-Qaeda, Qaeda, al-Qa'ida, al-Qaida