English dictionary

Info: This web site is based on WordNet 3.0 from Princeton University.

English adjective: base

1. base serving as or forming a base

SamplesThe painter applied a base coat followed by two finishing coats.



Antonymsincidental, incident

2. base of low birth or station (`base' is archaic in this sense)

SamplesBaseborn wretches with dirty faces.
Of humble (or lowly) birth.

Synonymsbaseborn, humble, lowly



3. base (used of metals) consisting of or alloyed with inferior metal

SamplesBase coins of aluminum.
A base metal.



4. base not adhering to ethical or moral principles

SamplesBase and unpatriotic motives.
A base, degrading way of life.
Cheating is dishonorable.
They considered colonialism immoral.
Unethical practices in handling public funds.




5. base having or showing an ignoble lack of honor or morality

SamplesThat liberal obedience without which your army would be a base rabble.
Taking a mean advantage.
Chok'd with ambition of the meaner sort.
Something essentially vulgar and meanspirited in politics.

Synonymsmean, meanspirited



6. base illegitimate



Domain usagearchaicism, archaism


7. base debased; not genuine

SamplesAn attempt to eliminate the base coinage.

Similarcounterfeit, imitative

Antonymsecht, genuine

English noun: base

1. base (artifact) installation from which a military force initiates operations

SamplesThe attack wiped out our forward bases.

Synonymsbase of operations

Broader (hypernym)military installation

Narrower (hyponym)air base, air station, army base, firebase, navy base, rocket base

Domain categoryarmed forces, armed services, military, military machine, war machine

2. base (artifact) lowest support of a structure

SamplesIt was built on a base of solid rock.
He stood at the foot of the tower.

Synonymsfoot, foundation, fundament, groundwork, substructure, understructure

Broader (hypernym)support

Narrower (hyponym)bed, raft foundation

Part meronymconstruction, structure

3. base (artifact) a place that the runner must touch before scoring

SamplesHe scrambled to get back to the bag.


Broader (hypernym)baseball equipment

Narrower (hyponym)first base, home, home base, home plate, plate, second base, third, third base

Part meronymbaseball diamond, diamond, infield

4. base (object) the bottom or lowest part

SamplesThe base of the mountain.

Broader (hypernym)part, piece

5. base (location) (anatomy) the part of an organ nearest its point of attachment

SamplesThe base of the skull.

Broader (hypernym)bottom

Domain categoryanatomy, general anatomy

6. base (communication) a lower limit

SamplesThe government established a wage floor.


Broader (hypernym)control

Narrower (hyponym)price floor, wage floor

7. base (cognition) the fundamental assumptions from which something is begun or developed or calculated or explained

SamplesThe whole argument rested on a basis of conjecture.

Synonymsbasis, cornerstone, foundation, fundament, groundwork

Broader (hypernym)assumption, supposal, supposition

Narrower (hyponym)meat and potatoes

Part meronymexplanation

8. base (artifact) a support or foundation

SamplesThe base of the lamp.

Synonymspedestal, stand

Broader (hypernym)support

Narrower (hyponym)brass monkey, staddle, trivet, trivet

9. base (substance) a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)


Broader (hypernym)ester

Narrower (hyponym)A, adenosine diphosphate, adenosine monophosphate, adenosine triphosphate, adenylic acid, ADP, AMP, ATP, base pair, C, deoxyadenosine monophosphate, deoxycytidine monophosphate, deoxyguanosine monophosphate, deoxythymidine monophosphate, G, muton, T, U, uracil

10. base (substance) any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water

SamplesBases include oxides and hydroxides of metals and ammonia.


Broader (hypernym)chemical compound, compound

Narrower (hyponym)cyanuramide, glyoxaline, imidazole, iminazole, melamine, purine, purine, pyridine, pyrimidine

11. base (shape) the bottom side of a geometric figure from which the altitude can be constructed

SamplesThe base of the triangle.

Broader (hypernym)flank

12. base the most important or necessary part of something

SamplesThe basis of this drink is orange juice.


Broader (hypernym)component, component part, constituent, part, portion

13. base (quantity) (numeration system) the positive integer that is equivalent to one in the next higher counting place

Samples10 is the radix of the decimal system.


Broader (hypernym)number

Domain categorynumber representation system, number system, numeration system, system of numeration

14. base (location) the place where you are stationed and from which missions start and end


Broader (hypernym)location

15. Base (group) 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

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

Instance hypernymforeign terrorist organization, FTO, terrorist group, terrorist organization

Domain categoryact of terrorism, terrorism, terrorist act

Domain regionAfghanistan, Islamic Republic of Pakistan, Islamic State of Afghanistan, Pakistan, West Pakistan

16. base (communication) (linguistics) the form of a word after all affixes are removed

SamplesThematic vowels are part of the stem.

Synonymsradical, root, root word, stem, theme

Broader (hypernym)descriptor, form, signifier, word form

Domain categorylinguistics

17. base (artifact) the stock of basic facilities and capital equipment needed for the functioning of a country or area

SamplesThe industrial base of Japan.


Broader (hypernym)fund, stock, store

Part holonymcommunication equipment, communication system, fire station, firehouse, gas system, grid, main, penal facility, penal institution, power grid, power system, public works, school system, sewage system, sewage works, sewer system, transit, transportation, transportation system, water, water supply, water system

18. base (artifact) the principal ingredient of a mixture

SamplesGlycerinated 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.

Broader (hypernym)ingredient

19. base (artifact) a flat bottom on which something is intended to sit

SamplesA tub should sit on its own base.

Broader (hypernym)bottom, underside, undersurface

Part meronymbox, lamp, vessel

20. base (artifact) (electronics) the part of a transistor that separates the emitter from the collector

Broader (hypernym)electrode

Part meronymelectronic transistor, junction transistor, transistor

Domain categoryelectronics

English verb: base

1. base (cognition) use as a basis for; found on

SamplesBase a claim on some observation.

Synonymsestablish, found, ground

Pattern of useSomebody ----s something PP

Narrower (hyponym)build

2. base (stative) situate as a center of operations

SamplesWe will base this project in the new lab.

Pattern of useSomebody ----s something.
Somebody ----s somebody.
Something ----s somebody.
Something ----s something

Broader (hypernym)locate, situate

3. base (consumption) use (purified cocaine) by burning it and inhaling the fumes


Pattern of useSomebody ----s.
Somebody ----s something

Broader (hypernym)do drugs, drug

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