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Synonyms

longtime

American  
[lawng-tahym, long-] / ˈlɔŋˌtaɪm, ˈlɒŋ- /

adjective

  1. existing, occurring, or continuing for a long period of time; longstanding.

    longtime friends celebrating 50 years of association.


longtime British  
/ ˈlɒŋˌtaɪm /

adjective

  1. of long standing

"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 longtime

First recorded in 1575–85; long 1 + time

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.

Meta on Wednesday launched paid subscription plans for its flagship apps, marking a major push by the tech giant to diversify beyond its longtime reliance on advertising revenue.

From Barron's • May 27, 2026

Manilow and his husband and longtime manager, Garry Kief, moved to this sprawling desert estate from Los Angeles in the late 1990s.

From Los Angeles Times • May 27, 2026

The new regime brought in David Rhodes, a longtime Rupert Murdoch lieutenant, and Bari Weiss, editor of the Free Press, as part of the Tiffany Network’s ideological renovation.

From Salon • May 27, 2026

Mr. Paxton, in the words of a longtime aide, “was Trump before Trump was Trump.”

From The Wall Street Journal • May 26, 2026

He was known to fire longtime employees for not recognizing an obscure line of movie dialogue he quoted, or if he discovered they weren’t familiar with one of his favorite cartoons, comic books, or videogames.

From "Ready Player One: A Novel" by Ernest Cline

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