Synonyms of custodian

custodian

noun

ˌkə-ˈstō-dē-ən 

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

• keeper
• janitor
• warden
• caretaker
• guardian
• steward
• watchman
• curator
• sexton
• cocurator

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

• guardian
• keeper
• warden
• guard
• sentinel
• bodyguard
• watchman
• patrol
• sentry
• warder
• defender
• lookout
• watcher
• watch
• observer
• picket
• minder
• escort
• gatekeeper
• spotter
• watchdog
• honor guard
• convoy
• surveillant
• hack

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

• guardian
• defender
• protector
• bodyguard
• protection
• keeper
• guard
• guardian angel
• champion
• warden
• watchman
• sentinel
• sentry
• preserver
• warder
• watchdog
• saver
• lookout
• watch
• conserver
• harborer

Example Sentences

Recent Examples of custodian

In other business, the board approved contracts with the transportation team and custodians, each represented by the United Steelworkers. — Doug Ross, Chicago Tribune, 28 Oct. 2026

Some of the firm’s most successful investments included decentralized exchange Uniswap and crypto custodian Anchorage Digital. — Camila Grigera Naón, Fortune, 22 Oct. 2026

But neither appellation applies to Jaime, who leads a large union, or Kundassery, who plans to be an emergency-medicine doctor, or Quintero, the daughter of a custodian, who has a graduate degree from Cornell. — Benjamin Wallace-Wells, New Yorker, 18 Oct. 2026

Head custodians were usually paid $60,000 to $73,000 per year. — Christopher Keating, Hartford Courant, 18 Oct. 2026