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Definitions

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.

In January, FBI agents searched the main election office in Fulton County, Ga., seeking records related to the 2020 race, which Biden won.

From The Wall Street Journal • Apr. 7, 2026

A parrot that attempted to take off from the main runway at Dublin Airport was reunited with its owner in 2019.

From BBC • Apr. 6, 2026

In afternoon trading, a barrel of the main Brent benchmark was off 0.8 percent at $108.20 with West Texas Intermediate down 1.4 percent at 110.01.

From Barron's • Apr. 6, 2026

Two main types of cells control this process.

From Science Daily • Apr. 6, 2026

Actually, his main concern now was the rate at which she was growing.

From "Jeremy Thatcher, Dragon Hatcher" by Bruce Coville

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.