: a biennial herbaceous plant (Allium porrum synonym A. ampeloprasum var. porrum) of the amaryllis family that is related to the garlic, onion and chive and is commonly grown as an annual for its mildly pungent linear leaves and especially for its cylindrical stemlike lower sheath of leaves
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Onions Popular varieties of bulbing onions, green onions, spring onions, and leeks all emit a strong, sulfurous odor.—Barbara Gillette, The Spruce, 3 May 2026 Spinach, zucchini, leeks, green onions, and parsley to create a hearty, herb-flavorful base to perfectly poach eggs in.—Maddy Bendgen, Better Homes & Gardens, 27 Apr. 2026 Fresh produce such as asparagus, leeks and peas tends to steal the spotlight this time of year, and our team has certainly been leaning into vegetable-forward dishes as of late.—Victoria Caruso, Washington Post, 26 Apr. 2026 On top, leeks braised in butter, the freshest asparagus and sauce verte made from mint, tarragon and parsley.—Timothy Depeugh, Charlotte Observer, 24 Apr. 2026 See All Example Sentences for leek
Word History
Etymology
Middle English, from Old English lēac; akin to Old High German louh leek
First Known Use
before the 12th century, in the meaning defined above
Time Traveler
The first known use of leek was
before the 12th century