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longevity
noun
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How to pronounce longevity:

Definition of longevity:

longevity (noun):
duration of service.
the act of continuing
a long duration of individual life

Synonyms for longevity:

tenurespellageendurancecontinuitylifestretchcontinuationdurabilityseniority
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Antonyms for longevity:

transienceimpermanence

Other 4-syllable words like longevity

Here are some other common words that have 4 syllables, like longevity does.

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