US: /ˈbeɪs/
UK: /bˈe‍ɪs/

English Vietnamese dictionary

base /beis/
  • danh từ
    • cơ sở, nền, nền tảng, nền móng
    • đáy, chấn đế
    • căn cứ
      • air base: căn cứ không quân
      • military base: căn cứ quân sự
      • base of operation: căn cứ tác chiến
    • (toán học) đường đáy, mặt đáy
      • base of a triangle: đáy tam giác
    • (toán học) cơ số
      • base of logarithm: cơ số của loga
    • (ngôn ngữ học) gốc từ
    • (hoá học) Bazơ
    • to be off one's base
      • (từ Mỹ,nghĩa Mỹ), (thông tục) mất trí
    • to get to first base
      • (từ Mỹ,nghĩa Mỹ), (thông tục) khởi công, bắt đầu làm (việc gì)
  • ngoại động từ
    • đặt tên, đặt cơ sở (cái gì) trên
    • dựa vào, căn cứ vào
      • to base oneself on facts: dựa vào thực tế
  • tính từ
    • hèn hạ, đê tiện; khúm núm, quỵ luỵ
    • thường, không quý (kim loại)
      • base metals: kim loại thường
    • giả (tiền)
      • base coin: đồng tiền giả

Advanced English dictionary

noun, verb, adjective
+ noun
lowest part
1 [C, usually sing.] the lowest part of sth, especially the part or surface on which it rests or stands: the base of a column / pyramid / glass + a pain at the base of the spine + The lamp has a heavy base.
original idea / situation
2 [C] an idea, a fact, a situation, etc. from which sth is developed: She used her family's history as a base for her novel. + His arguments have a sound economic base.
of support / income / power
3 [C, usually sing.] the people, activity, etc. from which sb/sth gets most of their support, income, power, etc: The party's main power base is in the agricultural regions. + These policies have a broad base of support. + an economy with a solid manufacturing base + Our business needs to build up its customer base. + By broadening the tax base (= increasing the number of people who pay taxes) he could raise more revenue.
first / main substance
4 [C, usually sing.] the first or main part of a substance to which other things are added: a drink with a rum base + Put some moisturizer on as a base before applying your make-up.
main place
5 [C] the main place where you live or stay or where a business operates from: I spend a lot of time in Britain but Paris is still my base. + The town is an ideal base for touring the area. + You can use our apartment as a base in New York. + The company has its base in New York, and branch offices all over the world.
of army / navy / air force
6 [C, U] a place where an army, a navy or an air force operates from: a military / naval base + an air base + After the attack, they returned to base.
7 [C] a chemical substance, for example an ALKALI, that can combine with an acid to form a salt
8 [C, usually sing.] a number on which a system of counting and expressing numbers is built up, for example 10 in the DECIMAL system and 2 in the BINARY system
in baseball / rounders
9 [C] one of the four positions that a player must reach in order to score points
see also DATABASE
Idioms: off base (AmE, informal) completely wrong about sth: If that's what you think, you're way off base.
more at FIRST BASE, TOUCH v.
+ verb [VN] [usually passive] ~ sb/sth / yourself in ... to use a particular city, town, etc. as the main place for a business, holiday/vacation, etc.: They decided to base the new company in York. + We're going to base ourselves in Tokyo and make trips from there.
Phrasal Verbs: base sth on / upon sth to use an idea, a fact, a situation, etc. as the point from which sth can be developed: What are you basing this theory on?
see also BASED
+ adjective (baser, basest) (formal) not having moral principles or rules: He acted from base motives.
basely adverb

Thesaurus dictionary

1 bottom, foot, support, stand, pedestal:
The base of the statue cracked and the whole thing fell down. Have you been able to find a teak base for the new lamp?
2 groundwork, background, fundamental principle, principle, foundation, underpinning; infrastructure, basis:
Henry's charter was at once welcomed as a base for the needed reforms.
3 root, theme, radical, stem, core:
In the word interdigitation the base is -digit-.
4 home, station, camp, starting-point, point of departure, post, centre:
Using the Sherpa village as a base of operations, we set up smaller camps as we began to climb the mountain.
5 establish, found, secure, build, ground, anchor, fix, hinge, form; derive, draw:
We are basing all our hopes on his ability to do a deal.
6 establish, headquarter, post, station, position, place:
The company is based in Guernsey.
1 low, undignified, cowardly, selfish, mean, despicable, contemptible, filthy, evil:
He must have had some base motive in revealing to her what Martha had said.
2 degraded, degrading, menial, inferior, mean, unworthy, lowly, low, grovelling, servile, slavish, subservient, downtrodden, abject, miserable, wretched, sordid, undignified, ignoble, dishonourable, disreputable, vile, scurrilous, wicked, Colloq infra dig:
Foolish sinners will submit to the basest servitude, and be attendants of swine.
3 mean, cheap, sorry, common, poor, shabby, shoddy:
He cast off his base attire, revealing a splendid suit of armour like burnished gold.
4 sordid, offensive, lewd, lascivious, obscene, profane, rude, ribald, unseemly, vulgar, coarse, rude, dirty, indecent, evil-minded, filthy, pornographic:
The entertainment in that theatre caters to the basest appetites.
5 poor, shoddy, cheap, fake, pinchbeck, inferior, counterfeit, fraudulent, debased, forged, spurious, worthless, bad:
Her jewels look valuable but are, in fact, made of base materials.
6 wicked, evil, wretched, corrupt, shameful, currish, loathsome, scurvy, insufferable, villainous:
They were labelled as base infidels and treated with contempt and cruelty.

Collocation dictionary

1 lowest part


firm, solid, strong


The statue has a solid concrete base.

2 original idea/situation


firm, secure, solid, sound, strong | economic, ideological
His arguments have a sound economic base.


have | establish, give sb, provide (sb with)
These policies give us a solid base for winning the next election.
| use sth as


~ for
He used the notes as a base for his lecture.

3 of support/income/power


solid, sound | broad, narrow
These policies have a broad base of support.
| power
a politician with a rural power base
| commercial, economic, financial, industrial, manufacturing, tax
The country has a sound commercial base.
| client, customer


have | develop, expand, improve, increase
The company is trying to expand its customer base.


grow | shrink

4 main place


excellent, ideal, perfect


The company has its base in New York.
| establish, set up
The company has set up its new base in the north.




~ for
an ideal base for mountain expeditions

5 military centre


Demonstrators demanded the removal of foreign bases.
| air, air force, military, missile, NATO, naval, RAF


have | build, establish
The Americans established a naval base on the island in the 1960s.


at a/the~
equipment kept at the base
| on a/the ~
people living on the air force base
| to (the) ~
The planes have all returned to base.

Concise English dictionary

+any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water
+installation from which a military force initiates operations
+lowest support of a structure
+place that runner must touch before scoring
+(numeration system) the positive integer that is equivalent to one in the next higher counting place
+the bottom or lowest part
+(anatomy) the part of an organ nearest its point of attachment
+a lower limit
+the fundamental assumptions from which something is begun or developed or calculated or explained
+a support or foundation
+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 countries
+(linguistics) the form of a word after all affixes are removed
+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
+(electronics) the part of a transistor that separates the emitter from the collector
+use as a basis for; found on
+use (purified cocaine) by burning it and inhaling the fumes
+assign to a station
+serving as or forming a base
+(used of metals) consisting of or alloyed with inferior metal
+of low birth or station (`base' is archaic in this sense)
+not adhering to ethical or moral principles
+having or showing an ignoble lack of honor or morality
+debased; not genuine

+a relation that provides the foundation for something
+the fundamental assumptions from which something is begun or developed or calculated or explained
+the most important or necessary part of something