This is the 12176th most frequent French word.
vieil
"Vieil" means "old" and is used before masculine singular nouns starting with a vowel or silent "h."
The word 'vieil' is used here as the masculine singular form of 'vieux' before a noun starting with a vowel sound or muted 'h', conforming to French phonological rules.
Voici un vieil homme qui vit ici depuis longtemps.
Here is an old man who has lived here for a long time.
In this instance, 'vieil' precedes 'abri', a masculine singular noun starting with a vowel, again adhering to rules for euphony.
J'ai trouvé un vieil abri perdu dans la forêt.
I found an old shelter lost in the forest.
Here, 'vieil' modifies 'ami', creating fluid pronunciation while maintaining grammatical correctness.