Dialogo al bar: ordinare cappuccino e cornetto

What does “liscia” mean when ordering water in Italian?

In Italian, “liscio/liscia” usually means smooth or plain: a smooth surface, hair without curls, a plain answer. But order water and “liscia” suddenly means still — no bubbles. You hear it as the opposite of “frizzante” or “gassata” (fizzy). It’s a meaning you mostly pick up at a café or restaurant table, not from a vocabulary list, which is why it catches learners off guard.

When the customer orders, she says: “Sì, anche una bottiglia d’acqua per piacere. Liscia per favore.” — “Yes, a bottle of water too please. Still, please.” At a table you mostly pick between still and sparkling: “liscia” or “naturale” for still, “frizzante” or “gassata” for fizzy. “Liscia” is heard across Italy and a touch more around the center and south (including Rome), while “naturale” is the other common word for still. The base adjective “liscio” means smooth or even — the same picture as a flat surface with nothing breaking it up, which is how flat, bubble-free water came to be called “liscia.”