1
: lasting or continuing through life
a lifelong friendship
2
Examples of lifelong in a Sentence
He had a lifelong love of nature.
Recent Examples on the Web
The move brought her career full circle, back to her family’s military roots and her lifelong commitment to service.
—
Jessica Coacci, Fortune, 21 Oct. 2025
Johnson said each of her mother's 10 siblings died from cancer, as did a lifelong friend who died at age 57, leaving behind his wife and two young daughters.
—Noam Levey, NPR, 21 Oct. 2025
Ellie Goulding shared a sweet tribute to Goodall with Rolling Stone crediting her changing her environmentalism into a lifelong mission.
—Tomás Mier, Rolling Stone, 20 Oct. 2025
Ryan Reynolds, a lifelong John Candy fan, produced the documentary and asked Hanks to direct it.
—Sarah Larson, New Yorker, 20 Oct. 2025
See All Example Sentences for lifelong
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Jessica Coacci, Fortune, 21 Oct. 2025
Johnson said each of her mother's 10 siblings died from cancer, as did a lifelong friend who died at age 57, leaving behind his wife and two young daughters.
—Noam Levey, NPR, 21 Oct. 2025
Ellie Goulding shared a sweet tribute to Goodall with Rolling Stone crediting her changing her environmentalism into a lifelong mission.
—Tomás Mier, Rolling Stone, 20 Oct. 2025
Ryan Reynolds, a lifelong John Candy fan, produced the documentary and asked Hanks to direct it.
—Sarah Larson, New Yorker, 20 Oct. 2025
See All Example Sentences for lifelong
Cite this Entry
“Lifelong.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lifelong. Accessed 29 Oct. 2025.
Copy CitationKids Definition
lifelong
adjective
life·long
ˈlī-ˌflȯŋ 
: continuing or lasting through life
a lifelong love for trees
a lifelong friendship
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