The meaning of LIFELONG is lasting or continuing through life. How to use lifelong in a sentence.

LIFELONG definition: lasting or continuing through all or much of one's life. See examples of lifelong used in a sentence.

Babies born too soon, before 37 weeks in the womb, can face serious, lifelong health problems if they survive.

lifelong in American English (ˈlaifˌlɔŋ, -ˌlɑŋ) adjective lasting or continuing through all or much of one's life

Definition of lifelong adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Factsheet What does the word lifelong mean? There are three meanings listed in OED's entry for the word lifelong. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Define lifelong. lifelong synonyms, lifelong pronunciation, lifelong translation, English dictionary definition of lifelong. adj. Continuing for a lifetime. American Heritage® Dictionary of the …

WordReference Random House Unabridged Dictionary of American English © 2025 life•long (līf′ lông′, -long′), adj. lasting or continuing through all or much of one's life: lifelong regret.

1 ENTRIES FOUND: lifelong (adjective) lifelong / ˈ laɪfˌlɑːŋ/ adjective Britannica Dictionary definition of LIFELONG always used before a noun : continuing or lasting through a person's life

Something lifelong lasts your entire life, or for most of it. A lifelong friendship might have begun in kindergarten, and it continues today.