line of defense

noun phrase

: a way of defending oneself
the body's first line of defense against illness

Examples of line of defense in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In the United States, gaps in access mean that prevention is our most powerful — and often only — line of defense. Michael Thwing, STAT, 6 Feb. 2026 But parents can and should do more to be the first line of defense. Sarah Scott, Parents, 5 Feb. 2026 Last line of defense, first line of exposure In Lapeer County, commissioners remain split on whether to move forward with Flock cameras, opting to continue discussions next month. CBS News, 3 Feb. 2026 L1Ts, as a first line of defense, must be fast. IEEE Spectrum, 3 Feb. 2026 See All Example Sentences for line of defense

Browse Nearby Words

Cite this Entry

“Line of defense.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/line%20of%20defense. Accessed 15 Feb. 2026.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster