custodian

noun

ˌkə-ˈstō-dē-ən How to pronounce custodian (audio)
Definition of custodiannext
1
as in keeper
a person who takes care of a property sometimes for an absent owner the custodian made his usual rounds of the building to make sure that everything was OK

Synonyms & Similar Words

Relevance
2
as in guardian
a person or group that watches over someone or something served as custodian of the prisoner until he could be turned over to federal authorities

Synonyms & Similar Words
3
as in defender
someone that protects we must regard ourselves as custodians of the Earth so that its natural resources may be enjoyed by many generations to come

Synonyms & Similar Words

Example Sentences

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.
Recent Examples of custodian More from this past week • A transgender woman who works as a custodian at the University of Kansas was reported for using the wrong restroom under a new state law. — Matthew Kelly, Kansas City Star, 12 Aug. 2026 Zuckerberg is referencing OpenAI and Anthropic, which operate on the premise that hyper-smart AI is both inevitable and apocalyptic—and therefore safe only in the hands of the wisest custodians (themselves). — Will Oremus, The Atlantic, 12 Aug. 2026 Two school custodians have been found shot dead in a Chicago elementary school, according to Chicago ABC station WLS. — David Brennan, ABC News, 11 Aug. 2026 Two custodians were found shot to death Monday inside a Chicago elementary school after one of them allegedly killed his co-worker before turning the weapon on himself, according to reports. — Louis Casiano, FOXNews.com, 11 Aug. 2026 See All Example Sentences for custodian
Recent Examples of Synonyms for custodian
  1. keeper
  2. guardian
  3. defender
  4. janitor
  5. warden
  6. protector
  7. caretaker
  8. guard
Noun
  • Allison Rugila, associate Sound keeper with Save the Sound, said that the presence of dolphins in the Long Island Sound points to both an ecological success story and a potential warning about the impacts of climate change.
    — Stephen Underwood, Hartford Courant, 31 Aug. 2026
  • Fans were still filing in, braving 90-degree heat with novelty beer swords in hand, as Maiava moved USC methodically down the field, punching in a one-yard keeper for an early score.
    — Ryan Kartje, Los Angeles Times, 29 Aug. 2026
Definition of keeper
Noun
  • The country has long had one of the world’s highest maternal mortality rates, now exacerbated by the Taliban’s ban on medical training for women and the requirement that women patients be accompanied to appointments by a male guardian.
    — The Week US, TheWeek, 31 Aug. 2026
  • Once an account is established, parents, guardians, grandparents and others can also contribute up to $5,000 per year until the year before the beneficiary turns 18.
    — Jessica Dickler, CNBC, 31 Aug. 2026
Definition of guardian
Noun
  • That ability to learn may ultimately separate successful defenders from unsuccessful ones.
    — Emil Sayegh, Forbes.com, 30 Aug. 2026
  • Miami got off to a promising start, taking a 1-0 lead in the 20th minute when Casemiro, who lined up as a center back, leaped above Montreal defenders and scored on a header off a Telasco Segovia corner kick.
    — Michelle Kaufman, Miami Herald, 30 Aug. 2026
Definition of defender
Noun
  • Scott and Dylan walked away from faculty members and the video production crew and and Scott allegedly assaulted her in a janitor’s closet.
    — Steve Henson, Los Angeles Times, 26 Aug. 2026
  • The titular gang comprises Mac (McElhenney), a closeted wannabe tough guy; the narcissistic prepster Dennis (Glenn Howerton); Dennis’s chronically unsure fraternal twin, Dee (Kaitlin Olson); and the bar’s buffoonish janitor, Charlie (Charlie Day).
    — Paula Mejía, New Yorker, 17 Aug. 2026
Definition of janitor
Noun
  • There is no word on when the search for a new warden will commence.
    — Christopher DeRose, CBS News, 20 Aug. 2026
  • But to Bill Donnelly, the service’s warden, New Jersey’s fire season, like North America’s, can feel unending.
    — Robert Sullivan, New Yorker, 17 Aug. 2026
Definition of warden
Noun
  • The intervention underscores Russia’s new role as protector of military regimes across the Sahel, where Africa Corps has replaced Wagner and prioritizes keeping juntas in power over battling insurgent groups.
    — Chinedu Asadu, Los Angeles Times, 31 Aug. 2026
  • Naturally, Dany, Pau, and Ale have become fierce protectors of this empire, working overtime for the sheer love of it.
    — Selena Fragassi, SPIN, 27 Aug. 2026
Definition of protector
Noun
  • The sharpest criticism of the deal came from Venezuelan opposition figures, who argue that a caretaker administration installed after a foreign military operation has no standing to sign away a century of oil rights.
    — Nora Gámez Torres, Miami Herald, 29 Aug. 2026
  • The aquarium said Peekachu initially appeared to be adapting to her new surroundings, eating seafood offered by caretakers and exploring her habitat.
    — Thao Nguyen, USA Today, 28 Aug. 2026
Definition of caretaker
Noun
  • Patterson, who turns 27 on Tuesday, has experience at guard and center, and the 49ers needed a backup at both spots considering Toth’s lingering concussion symptoms.
    — Matt Barrows, New York Times, 31 Aug. 2026
  • So the first-year guard had to wait around and trust that his new team would figure out a way to get him in the door.
    — Tony East, Forbes.com, 30 Aug. 2026
Definition of guard

Browse Nearby Words

cusswords
custodian
custodians
See all Nearby Words

Cite this Entry

“Custodian.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/custodian. Accessed 2 Sep. 2026.

Copy Citation
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of dissonant

See Definitions and Examples »

Popular in Grammar & Usage

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

A List of Most Commonly Confused Words

Why do we use apostrophes to show possession?

Is it 'nerve-racking' or 'nerve-wracking'?

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

Popular in Wordplay

See More

The Longest Long Words List

Stay Woke

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Even More Bird Names that Sound Like Insults (and Sometimes Are)
See More

Popular

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

The Longest Long Words List

Stay Woke
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
skateboard-dog-hat
Wordmaxxing Slang Quiz Give your vocabulary a glow up by getting sendy w...
See All