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main

[meyn] / meɪn /
ADJECTIVE
principal, predominant
Synonyms
STRONGEST
central essential fundamental leading major particular preeminent primary prime special vital
STRONG
capital cardinal chief head necessary premier star
WEAK
controlling critical crucial foremost outstanding paramount prevailing stellar supreme
Antonyms
STRONGEST
auxiliary common inessential inferior minor ordinary secondary subordinate trivial unimportant usual
STRONG
unnecessary
WEAK
extra insignificant nonessential
ADJECTIVE
absolute, utter
Synonyms
STRONGEST
entire
STRONG
brute mere simple utmost
WEAK
direct downright only pure sheer undisguised
Antonyms
WEAK
auxiliary extra inessential insignificant minor nonessential secondary subordinate unimportant unnecessary
NOUN
pipe for system
Synonyms
STRONG
cable channel conduit duct line trough trunk

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.

Traffic through the main Dubai airport, once the world’s busiest for international travelers, was throttled for weeks.

From The Wall Street Journal • Apr. 30, 2026

Currently, astronomers rely on two main approaches to measure the Hubble constant, but they do not agree with each other.

From Science Daily • Apr. 29, 2026

Globally, the US is the main oil producing nation - and has been since 2018 - producing 13.6 million barrels a day. last year.

From BBC • Apr. 29, 2026

At Vanguard, among eligible workers in plans that offered the super catch-up feature, 21% hit the main contribution limit of $23,500, and more than 90% of those people also made some catch‑up contributions.

From MarketWatch • Apr. 29, 2026

He led me quickly across the main atrium and down a hallway and into a tiny room I could only assume was his office.

From "Glitch" by Laura Martin

Vocabulary lists containing main

Jim Burke's Academic Vocabulary List

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Vocabulary of the Common Core

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Common Core Grade 5, List 5

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