semper fidelis

American  

[sem-per fi-dey-lis, sem-per fi-dey-lis, -dee-] / ˈsɛm pɛr fɪˈdeɪ lɪs, ˈsɛm pər fɪˈdeɪ lɪs, -ˈdi- /

Latin.

1. always faithful: motto of the U.S. Marine Corps.

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semper fidelis British  

/ ˈsɛmpə fɪˈdeɪlɪs /

1. always faithful

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semper fidelis Cultural  

1. Latin for “always faithful”; the motto of the United States Marine Corps.

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Example Sentences

Marines live by the motto “Semper Fidelis” — always faithful.

From Washington Post

“That’s the embodiment of the Marine Corps motto, ‘Semper fidelis.’

From Los Angeles Times

It was a night of confirmation when he felt an almost mystical affinity with every man who had ever borne the motto of semper fidelis.

From Literature

The old hymn, Bull thought, as the band played “Semper Fidelis.”

From Literature

“General Mattis is the living embodiment of the Marine Corps motto, ‘semper fidelis,’ always faithful.”

From Washington Post