This is the 206th most frequent French word.
elles
"They" (feminine plural).
'elles' is a subject pronoun referring to a group of females performing the action of eating.
Elles mangent des pommes.
They eat apples.
'elles' is a subject pronoun emphasizing the importance of 'ces décisions'.
Ces décisions, elles sont cruciales pour le projet.
These decisions, they are crucial for the project.
'elles' is a subject pronoun referring back to 'Marie et Claire' indicating their arrival.