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Definitions

base

[beys] / beɪs /
ADJECTIVE
vulgar, low
Synonyms
STRONGEST
paltry
STRONG
common corrupt depraved foul grovelling humble mean menial offensive plebeian poor shoddy
WEAK
abject abominable cheap coarse contemptible despicable disgraceful dishonorable disreputable ignoble immoral indelicate loathsome lowly pitiful scandalous servile shameful sleazy sordid sorry squalid trashy ugly unworthy vile worthless wretched
Antonyms
STRONG
aristocratic clean good high honest honorable just kind moral nice noble pleasing pure rich superior uncorrupt upright wealthy
NOUN
foundation
Synonyms
STRONGEST
ground infrastructure support
STRONG
basement basis bed bedrock bottom foot footing groundwork pedestal rest root seat seating stand substratum substructure underpinning
Antonyms
STRONG
top
WEAK
annex branch
NOUN
fundamental part
Synonyms
STRONGEST
foundation infrastructure source
STRONG
authority backbone basis core essence essential evidence fundamental groundwork heart key origin principal principle root underpinning
WEAK
chief constituent important part primary element
Antonyms
STRONG
auxiliary exterior exteriority outside surface trivia
WEAK
annex branch top
NOUN
headquarters
Synonyms
STRONGEST
camp center depot field garrison home port post settlement site station terminal
STRONG
dock hangar harbor strip
WEAK
starting point
Antonyms
WEAK
annex branch top
VERB
build plan or opinion on
Synonyms
STRONGEST
depend establish found locate set up station stay
STRONG
construct derive ground hinge plant predicate prop rest
Antonyms
STRONGEST
destroy end leave move

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The space agency hopes to establish a lunar base as a testing grounds for future missions to Mars.

From Los Angeles Times • Apr. 10, 2026

To the surprise of the team listening back at base, Stafford and Schirra performed Jingle Bells.

From BBC • Apr. 10, 2026

The Artemis II journey was the first crewed mission of NASA's program aiming to install a sustained presence on the Moon, including the eventual construction of a base.

From Barron's • Apr. 10, 2026

On Wednesday, Gen. Dan Caine, the chairman of the Joint Chiefs of Staff, said the strikes had shattered Iran’s defense industrial base.

From The Wall Street Journal • Apr. 10, 2026

At a secret training base in a forest near Moscow, twenty young pilots competed for the honor of being strapped to the top of a rocket.

From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin

Vocabulary lists containing base

The SAT: Multiple-Meaning Words, List 1

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

Baseball: A Lexicon

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

The ACT Reading Test: Multiple-Meaning Words, List 1

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!