Partie, nf : part, section.

The French word « partie » looks very similar to the English word “party.”

The word “party” in English typically means “a social gathering.”

In French, « partie » means part or section.

Nous étudions les différentes parties du cerveau.
We were studying the different parts of the brain.

 Cette présentation est divisée en 3 parties.
 This presentation is divided into three sections.

Nous sommes montés dans la partie arrière du train.
We got onto the rear section of the train.