This is the 6788th most frequent French word.
lachat
"Lachat" is not a standard French word. It may be a typo or a regional term.
Here, 'l'achat' is used as a noun to denote 'the purchase', describing the act or entity of buying something.
J'ai effectué l'achat de cette voiture hier.
I made the purchase of this car yesterday.
Here, 'l'achat' is again used as a noun, in the context of the act or process of buying, linked grammatically to the verb 'faire'.
Faire l'achat d'un ordinateur nécessite une réflexion.
Buying a computer requires reflection.
In this context, 'achats' (plural of 'achat') is used to refer to purchased items, emphasizing the outcome of buying.