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Merriam-Webster's Word of the Day

cloister

Merriam-Webster's Word of the Day

Merriam-Webster

Arts, Education, Language Courses, Literature

4.51.3K Ratings

🗓️ 24 August 2025

⏱️ 2 minutes

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Summary

Merriam-Webster's Word of the Day for August 24, 2025 is:

cloister • \KLOY-ster\  • verb

To cloister someone or something is to shut the person or thing away from the world.

// The scientist cloistered himself in his laboratory all weekend to finish analyzing data.

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Examples:

“Now, the past Melbourne High student body president and co-valedictorian is planning to step down Jan. 20 after serving nearly four years as NASA’s administrator. ... ‘My constitution is such that I’m not going to retire. And what I said is, I’m going to cloister myself and write a book. And then, we’ll see what happens,’ [Bill] Nelson, who is now 82, told reporters Wednesday during a roundtable discussion at the Kennedy Space Center Press Site.” — Rick Neale, Florida Today, 19 Dec. 2024

Did you know?

Cloister first entered the English language as a noun in the 13th century, referring then (as it still does) to a convent or monastery. More than three centuries later, English speakers began using the verb cloister to mean “to seclude in or as if in a cloister.” Today, the noun can also refer to the monastic life or to a covered and usually arched passage along or around a court. You may also encounter the adjective cloistered with the meaning “separated from the rest of the world [as if in a cloister],” as in “She leads a private, cloistered life in the country.” Cloister ultimately comes from the Latin verb claudere, meaning “to close.” Other words that can be traced back to the prolific claudere include close, conclude, exclude, include, preclude, seclude, and recluse.



Transcript

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0:00.0

It's Merriam Webster's word of the day for August 24th.

0:12.2

Today's word is cloister, spelled C-L-O-I-S-T-E-R.

0:17.8

Cloister is a verb. To cloister someone or something is to shut the person or thing away from the world.

0:24.2

Here's the word used in a sentence from Florida today. Now the past Melbourne high student body,

0:31.0

president and co-valedictorian, is planning to step down January 20th after serving nearly four years as NASA's administrator.

0:40.2

My constitution is such that I'm not going to retire, and what I said is I'm going to cloister myself

0:46.0

and write a book, and then we'll see what happens. Nelson, who is now 82, told reporters

0:51.9

Wednesday during a roundtable discussion at the Kennedy Space

0:54.9

Center press site. Cloister first entered the English language as a noun in the 13th century,

1:01.4

referring then, as it still does, to a convent or monastery. More than three centuries later,

1:07.5

English speakers began using the verb cloister to mean to seclude in or as if in a cloister.

1:14.2

Today, the noun can also refer to the monastic life or to a covered and usually arched passage along or around a court.

1:23.5

You may also encounter the adjective cloistered with the meaning separated from the rest of the world as if in a cloister, as in she leads a private, cloistered life in the country.

1:35.2

Cloister ultimately comes from the Latin verb cloudere, meaning to close.

1:40.7

Other words that can be traced back to the prolific cloud array route include close, conclude, exclude, include, preclude, seclude, and recluse.

1:52.4

With your word of the day, I'm Peter Sokolowski.

2:06.9

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