épaisseur

thickness

noun eh-peh-SEUR Rare

Usage Note

Épaisseur derives from épais (thick). It measures the third dimension of an object (its depth/thickness) as opposed to its length or width. Figuratively, l'épaisseur d'un personnage means a character's depth or complexity. The phrase dans l'épaisseur de la nuit (in the depths of the night) is literary.

Examples

"Quelle est l'épaisseur de cette planche?"

Natural Translation

What is the thickness of this plank?

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