English Reference
noun

leek

n.
US /ˈɫik/ UK /lˈiːk/ leek UK spelling leeks

  1. 01 B2 Upper Intermediate Cooking

    a long vegetable with green leaves and a white base that tastes like a mild onion.

    a vegetable related to the onion, characterized by a long cylindrical stalk of bundled leaf sheaths and a subtle, sweet flavour.

    Simple

    She chopped the leek into thin rings to add to the potato soup.

    In context

    The chef recommended sautéing the leeks slowly in butter to bring out their natural sweetness before adding the stock.

    Pitfall
    There is a leek in the water pipe. There is a leak in the water pipe.

    Do not confuse 'leek' (the vegetable) with 'leak' (a hole where liquid or gas escapes).

  2. 02 C1 Advanced British English

    the vegetable used as a symbol of Wales.

    the edible plant used as a national emblem of Wales, often worn on Saint David's Day.

    Simple

    Many Welsh people wear a small leek on their clothes to celebrate Saint David's Day.

    In context

    The leek has served as a prominent Welsh national symbol for centuries, appearing on military badges and coins alike.

They taste like a cross between a sweet leek and a spring onion.

The Local· 28 Aug 2026

From Middle English leke, leek, lek, from Old English lēac (“a garden herb, leek, onion, garlic”), from Proto-West Germanic lauk, from Proto-Germanic lauką laukaz (“leek, onion”), from Proto-Indo-European lewg- (“to bend”). Cognate with Dutch look (“garlic, leek”), German Low German Look (“leek”), German Lauch (“leek, allium”), Danish løg (“onion”), Swedish lök (“onion”), Icelandic laukur (“onion, leek, garlic”). See garlic.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin ine-pro *lewg-
Level B2 · Upper Intermediate
Frequency Occasional
Updated