Thesaurus.com
Dictionary.com
Showing results for linchpin. Search instead for bilincsein.
Definitions

linchpin

[linch-pin] / ˈlɪntʃˌpɪn /
NOUN
cornerstone
Synonyms
STRONGEST
essential foundation keystone mainstay pillar
STRONG
anchor base mainspring
WEAK
key element main ingredient
NOUN
keynote
Synonyms
STRONG
basis center core cornerstone criterion crux essence gist heart idea kernel keystone mainspring marrow measure motive nub pith principle root source spring standard substance
WEAK
basic idea central idea
Antonyms
STRONG
end exterior exteriority outside periphery result surface
NOUN
keynote/keystone
Synonyms
WEAK
basic idea basis center core cornerstone criterion crux gist heart idea kernel mainspring marrow measure motive nub pith principle root source spring standard substance
NOUN
mainstay
Synonyms
STRONGEST
backbone bulwark pillar
STRONG
anchor brace buttress crutch maintainer prop sinew staff standby stay strength supporter sustainer upholder
WEAK
good right arm right-hand person

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.

OpenAI, the linchpin of many AI deals, has shut down its Sora video app.

From Barron's • Mar. 25, 2026

Analysts say the duration of the conflict is key for markets and the U.S. economy, with the price of oil being a linchpin.

From MarketWatch • Mar. 3, 2026

The “Crossfire” confrontation is a linchpin in this story, but as Zengerle reminds readers, it’s not as cut-and-dry as a comic book villain origin story would be.

From Salon • Feb. 2, 2026

Root's patience at the crease, deft footwork and reading of spin made him the linchpin of England's chase and once he settled in, Sri Lanka found it difficult to know where to bowl to him.

From BBC • Jan. 24, 2026

The Full-Scale Tunnel, the linchpin of the lab’s World War II drag cleanup work, continued to test everything from low-speed aircraft designed with delta wings to helicopters.

From "Hidden Figures" by Margot Lee Shetterly

Vocabulary lists containing linchpin

300 Most Difficult "SAT" Words

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!

Lifting as We Climb

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 Faithful Spy

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!