underlie

verb

un·​der·​lie ˌən-dər-ˈlī How to pronounce underlie (audio)

transitive verb

1
: to lie or be situated under
2
: to be at the basis of : form the foundation of : support
ideas underlying the revolution
3
: to exist as a claim or security superior and prior to (another)
4
archaic : to be subject or amenable to

Examples of underlie in a Sentence

A tile floor underlies the rug. The river is underlain by limestone. We discussed the principles that underlay their methods. A theme of revenge underlies much of her writing.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Lifting their lips Growling Baring their teeth Addressing Resource Guarding If a dog displays resource guarding, owners are encouraged to consult a veterinarian to rule out underlying medical issues, as behavioral changes or aggression could indicate health concerns. Barbara A. Perry, Newsweek, 28 Jan. 2025 Although rare, if your hiccups last longer than 48 hours, see a healthcare provider to rule out or treat other underlying health conditions. Cristina Mutchler, Verywell Health, 28 Jan. 2025 These warning signs include severe symptoms, prolonged symptoms, and additional concerns like underlying health conditions. Heidi Cope, Health, 26 Jan. 2025 Worsening of existing conditions Some older patients may have underlying chronic conditions, such as diabetes, high blood pressure, kidney disease and heart disease, several health experts told Fox News Digital. Amy McGorry, Fox News, 25 Jan. 2025 See all Example Sentences for underlie 

Word History

First Known Use

before the 12th century, in the meaning defined at sense 4

Time Traveler
The first known use of underlie was before the 12th century

Dictionary Entries Near underlie

Cite this Entry

“Underlie.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underlie. Accessed 1 Feb. 2025.

Kids Definition

underlie

verb
un·​der·​lie ˌən-dər-ˈlī How to pronounce underlie (audio)
underlay -ˈlā How to pronounce underlie (audio) ; underlain -ˈlān How to pronounce underlie (audio) ; underlying -ˈlī-iŋ How to pronounce underlie (audio)
1
: to lie or be located under
2
: to form the foundation of : support
ideas underlying the revolt
Last Updated: - Updated example sentences
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