San Luis

geographical name

San Lu·is san-ˈlü-əs

valley in southern Colorado and northern New Mexico along the upper Rio Grande between the San Juan and Sangre de Cristo mountains

Cite this Entry

Style

“San Luis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/San%20Luis. Accessed 28 Feb. 2025.

Copy Citation

More from Merriam-Webster

Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.

Can you solve 4 words at once?

Can you solve 4 words at once?

Word of the Day

cryptic

Listen to the pronunciation of cryptic

See Definitions and Examples »

Get Word of the Day daily email!

Popular in Grammar & Usage

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

'Canceled' or 'cancelled'?

Why is '-ed' sometimes pronounced at the end of a word?

What's the difference between 'fascism' and 'socialism'?

More Commonly Misspelled Words

Popular in Wordplay

'In Vino Veritas' and Other Latin Phrases to Live By

Even More Words That Sound Like Insults But Aren't

10 Words from Taylor Swift Songs (Merriam's Version)

More Words with Remarkable Origins

Terroir, Oenophile, & Magnum: Ten Words About Wine

Popular Features

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

'In Vino Veritas' and Other Latin Phrases to Live By

Even More Words That Sound Like Insults But Aren't