This is the 12307th most frequent French word.
élargir
To widen, enlarge, or expand.
Here, 'élargir' is used in a figurative sense meaning to expand intellectual perception or understanding.
Nous devons élargir notre champ de vision.
We must broaden our field of vision.
'Élargir' is applied in a literal physical context referring to increasing the width of the road.
Ils travaillent pour élargir la route.
They are working to widen the road.
The verb is used metaphorically to describe increasing the number or scope of social connections.