This is the 4536th most frequent French word.
lâche
Cowardly; loose.
In this sentence, 'lâche' is used as an adjective to describe someone's lack of courage or tendency to avoid difficulties.
Il est lâche et refuse de se confronter à ses problèmes.
He is cowardly and refuses to confront his issues.
Here, 'lâche' is used as a verb (in the imperative form 'lâche') meaning 'to let go' or 'release' something.
Ne lâche pas la corde, sinon l'objet tombera.
Don't let go of the rope, or the object will fall.
In this example, 'lâche' is used as an adjective describing the string as being loose or not tight.