[ lawng-las-ting, -lah-sting, long- ]
/ ˈlɔŋˈlæs tɪŋ, -ˈlɑ stɪŋ, ˈlɒŋ- /


enduring or existing for a long period of time: a long-lasting friendship.
effective for a relatively long period of time: a long-lasting pain reliever.
resisting the effects of wear or use over a long period: a long-lasting fabric used for work clothes.

Origin of long-lasting

First recorded in 1520–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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