lisser

to smooth, to flatten

verb lee-SEH Rare

Usage Note

Lisser is used for smoothing hair (lisser les cheveux), ironing out wrinkles in fabric, or levelling a surface like plaster or dough. A lisseur (m) is a hair straightener, and the adjective lisse (smooth, sleek) is the root. In financial French, lisser les données means to smooth out data — to reduce peaks and troughs in a dataset.

Examples

"Elle lisse ses cheveux avant de sortir."

Natural Translation

She straightens her hair before going out.

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