Lay is often used where lie is considered standard, as in "I'm going to lay down for a quick nap." The use, which dates to the 14th century, troubled no one until the 18th, but since then, people who care about such things have tried to teach the rest of us that a person lies, not lays, down. Lay in the related use means "to place (someone or something) down gently in a flat position." It requires an object; there must be a thing or person being placed.
Lay it down.
It's time to lay the baby down for a nap.
Lie, on the other hand, does not require an object; instead, the one lying down is already in position or is moving or going to move to such a position on their own.
The cat lies there every morning.
You can lie down on the sofa.
The tenses of the verbs complicate things further. Lay becomes laid and laying
VerbLay the fabric carefully on the table.
He laid a gentle hand on her shoulder.
She laid the baby in his crib for a nap.
When will they lay the foundation for the addition? lay tracks for the new railroad
They laid him in his grave. Noun (1)
my main lay is as a general contractor, but I do side work as a carpenter Noun (2)
the minstrel strummed a cheerful lay on his lute
she sang a short lay in dedication to her husband Adjective
a science magazine written for the lay public
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Verb
Last winter, the avian flu swept the country, killing 70 million egg-laying birds, according to Metz.—Vanessa Yurkevich, CNN Money, 20 Feb. 2026 Byrd didn’t lay the blame for the accounting system’s weaknesses on the Education Department.—Nuria Martinez-Keel, Oklahoma Voice, 19 Feb. 2026
Adjective
Yet, even as Aleys’s world begins to change with the rise of lay literacy, those lay people are almost entirely men.—Los Angeles Times, 5 Feb. 2026 Both memoirs prepare the lay gambler for a world of gruelling, bruising defeats and unglamorous back-of-the-envelope calculus.—Dan Piepenbring, New Yorker, 4 Feb. 2026 See All Example Sentences for lay
Word History
Etymology
Verb and Noun (1)
Middle English leyen, from Old English lecgan; akin to Old English licgan to lie — more at lie
Noun (2)
Middle English, from Anglo-French lai — see layentry 5
Adjective
Middle English, from Anglo-French lai, from Late Latin laicus, from Greek laikos of the people, from laos people
Middle English lay "ballad," from early French lai (same meaning)
Adjective
Middle English lay "of the people other than priests and clergy," from early French lai (same meaning), from Latin laicus "of the people," derived from Greek laos "people"