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Synonyms

mainly

American  
[meyn-lee] / ˈmeɪn li /

adverb

  1. chiefly; principally; for the most part; in the main; to the greatest extent.

    Our success was due mainly to your efforts. The audience consisted mainly of students.

  2. Obsolete. greatly; mightily; abundantly.


mainly British  
/ ˈmeɪnlɪ /

adverb

  1. for the most part; to the greatest extent; principally

  2. obsolete strongly; very much

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of mainly

First recorded in 1225–75, mainly is from the Middle English word maynliche, maynly. See main 1, -ly

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.

Mainly, while all of the top candidates have impressive resumes, there’s a lack of star power that could help propel someone to the forefront.

From Los Angeles Times • May 31, 2026

Mainly, the loans can be difficult to value and are risky in periods of economic trouble.

From Barron's • Apr. 4, 2026

Mainly, this matters in the realm of cinematic and box office achievement, for which “Sinners” won a 2026 Golden Globe.

From Salon • Mar. 13, 2026

Emergency medicine specialist Kimberly Humphrey, currently helping patients at the COP medical centre, told the BBC that the injuries are "Mainly people with smoke inhalation, someone with a lung injury from smoke."

From BBC • Nov. 20, 2025

"Mainly commercials, but not for any banks or car dealerships, because those are usually choral arrangements."

From "Me Talk Pretty One Day" by David Sedaris

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