lifeblood
noun
life·blood
ˈlīf-ˈbləd 
-ˌbləd
1
: blood regarded as the seat of vitality
2
: a vital or life-giving force or component
freedom of inquiry is the lifeblood of a university
Examples of lifeblood in a Sentence
The town's lifeblood has always been its fishing industry.
The neighborhoods are the lifeblood of this city.
the lifeblood that flows through his veins
Recent Examples on the Web
These values have been the lifeblood of our diplomacy.
—
Lynn Northcutt Vega, Sun Sentinel, 29 July 2025
The Processing Powerhouse: Correlation is the lifeblood of modern AI.
—Rohan Pinto, Forbes.com, 24 July 2025
But reason-giving is the lifeblood of judicial action.
—Noah Feldman, Mercury News, 22 July 2025
But today, that small-business lifeblood is being squeezed by a stealth python that is constricting entrepreneurship.
—Preston Fore, Fortune, 10 July 2025
See All Example Sentences for lifeblood
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Lynn Northcutt Vega, Sun Sentinel, 29 July 2025
The Processing Powerhouse: Correlation is the lifeblood of modern AI.
—Rohan Pinto, Forbes.com, 24 July 2025
But reason-giving is the lifeblood of judicial action.
—Noah Feldman, Mercury News, 22 July 2025
But today, that small-business lifeblood is being squeezed by a stealth python that is constricting entrepreneurship.
—Preston Fore, Fortune, 10 July 2025
See All Example Sentences for lifeblood
Cite this Entry
“Lifeblood.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lifeblood. Accessed 7 Aug. 2025.
Copy CitationKids Definition
lifeblood
noun
life·blood
ˈlīf-ˈbləd
: something that gives strength and energy
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