This is the 1551st most frequent French word.
longues
"Longues" means "long" (feminine plural form).
In this sentence, 'longues' is the plural feminine form of the adjective 'long,' agreeing with 'journées,' which is feminine plural.
Les journées d'été sont longues.
Summer days are long.
Here, 'longues' modifies 'robes,' which is feminine plural, reflecting their physical length characteristics.
Elle portait de longues robes élégantes.
She wore long elegant dresses.
In this example, 'longues' is used figuratively to describe the perceived duration of the discussions, agreeing in form with 'discussions,' feminine plural.