plural custodians
1
formal
: someone who keeps and protects something valuable for another person
—often + of
The court appointed him custodian of the dead author's manuscripts.
—often used figurativelyThe museums are custodians of culture.
2
US
: a person who cleans and takes care of a building : janitor
a school custodian
Cite this Entry
“Custodian.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/custodian. Accessed 22 Jun. 2026.
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