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 93-year-old artist’s exhibition emphasizes her lifelong commitment to peace activism and humanitarian messaging through decades of artistic work focused on social change.
—
Julius Miller
follow, Los Angeles Times, 14 May 2026
The visit builds on the work of The Royal Foundation Centre for Early Childhood and Kate’s Shaping Us campaign, which has focused on the lifelong impact of relationships and environments in children’s earliest years.
—Simon Perry, PEOPLE, 13 May 2026
Arias, a lifelong New York City resident, also lived in the building with his mother and sisters.
—Rosemary Feitelberg, Footwear News, 12 May 2026
My friends who are lifelong Browns fans would absolutely love to see a winning season, of course.
—Hanif Abdurraqib, New Yorker, 12 May 2026
See All Example Sentences for lifelong
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Julius Miller
follow, Los Angeles Times, 14 May 2026
The visit builds on the work of The Royal Foundation Centre for Early Childhood and Kate’s Shaping Us campaign, which has focused on the lifelong impact of relationships and environments in children’s earliest years.
—Simon Perry, PEOPLE, 13 May 2026
Arias, a lifelong New York City resident, also lived in the building with his mother and sisters.
—Rosemary Feitelberg, Footwear News, 12 May 2026
My friends who are lifelong Browns fans would absolutely love to see a winning season, of course.
—Hanif Abdurraqib, New Yorker, 12 May 2026
See All Example Sentences for lifelong
Cite this Entry
“Lifelong.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lifelong. Accessed 19 May. 2026.
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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