adjective

longtime

of long duration, long-standing

He is a longtime friend of the family.

He is a longtime friend of the family.

She is a longtime resident of this town.

She is a longtime resident of this town.

((longtime)) + noun describing a person's role or relationship He is a longtime supporter of the club.

Synonyms: long-standing, old; Antonyms: new, recent

A compound of 'long' and 'time', literally meaning for a long period of time.

Think of it as simply 'long time' squashed into one word to describe a noun.

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