This is the 10452nd most frequent French word.
lanterne
"Lanterne" means "lantern" in English, a portable light source enclosed in a case.
Here, 'lanterne' is used in its literal sense to refer to a portable lighting device.
Elle porte une lanterne pour éclairer son chemin dans l'obscurité.
She carries a lantern to light her way in the darkness.
In this case, 'lanterne' is metaphorically used to signify enlightenment or understanding.
Ayant enfin vu à travers ses mensonges, j'ai vu la lumière de sa lanterne.
Finally seeing through their lies, I saw the light of their lantern.
Here, 'lanterne' refers to decorative lanterns used for aesthetic purposes.