custodian
Americannoun
-
a person who has custody; keeper; guardian.
-
a person entrusted with guarding or maintaining a property; janitor.
noun
-
a person who has custody, as of a prisoner, ward, etc
-
a guardian or keeper, as of an art collection, etc
Other Word Forms
Etymology
Origin of custodian
1775–85; < Latin custōdi ( a ) watchman ( see custody) + -an
Compare meaning
How does custodian compare to similar and commonly confused words? Explore the most common comparisons:
Explanation
You may know the custodian at your school — the person who's in charge of taking care of the building, in keeping it clean, making sure the heat works, and the roof doesn't leak. The word custodian comes from Latin custos, meaning "guardian," and anyone who looks after something can be a custodian. You might be the custodian of your club's records — you take care of the files and keep them up to date. Or you could be the custodian of the crown jewels — you hold the keys to the treasury and it's your job to make sure the jewels don't get lost or stolen.
Vocabulary lists containing custodian
Frindle
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Unit 1: Ecological Systems
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
Awkward
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
A third-party custodian holds the underlying common stock.
From Barron's • May 15, 2026
When Turner acquired MGM’s library, along with Warner Bros.’ pre-1948 titles, he also became a custodian of American cinematic history, whether he intended to or not.
From Salon • May 8, 2026
These are custodial accounts, so the custodian, typically a parent, would make decisions around rollovers and investments on behalf of the child.
From The Wall Street Journal • Apr. 6, 2026
I’m just that current custodian looking after them for future generations,’ ” Walker said.
From Los Angeles Times • Mar. 2, 2026
The custodian at the canoe house noted a sudden demand for canoes, all of them rented by boy-girl combinations.
From "The Boys in the Boat: Nine Americans and Their Epic Quest for Gold at the 1936 Berlin Olympics" by Daniel James Brown
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
