IPA: /əˈrɒndɪsmɒ̃/
KK: /əˈrɒndɪsmɒ̃/
A part of a city or town in France that is used for administrative purposes.
Paris is divided into 20 arrondissements, each with its own local government.
Arrondissement is derived from the French word 'arrondissement', which comes from 'arrondir' (meaning to round off) and the suffix '-ment' (indicating the result of an action). The term refers to a district or administrative division that has been rounded off or defined within a larger area.
Think of 'rounding off' ('arrondir') an area to create a specific district or division, which is what an 'arrondissement' represents.
No commonly confused words.