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semper fi

American  
[sem-per fahy] / ˈsɛm pər ˈfaɪ /
Informal.

  1. semper fidelis.

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.

It is next to the site of the graduation ceremony that sweeps exhausted recruits from basic training into the world of semper fi: the Marines motto meaning "always faithful."

From Scientific American • Jan. 9, 2014

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.