This is the 798th most frequent French word.
vais
The French word "vais" means "am going" (first person singular of "aller").
In this sentence, 'vais' is the first-person singular present tense of 'aller' (to go), indicating an action taking place.
Je vais au marché.
I am going to the market.
Here, 'vais' is used in the construction 'aller + infinitive', which expresses a future intention or action.
Je vais parler avec mon ami demain.
I am going to speak with my friend tomorrow.
In this usage, 'vais' is part of the expression 'aller bien', which is used to indicate a state of being or well-being.