American English

Definition of custodian noun from the Oxford Advanced American Dictionary



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  1. 1a person who takes responsibility for taking care of or protecting something the museum's custodians a self-appointed custodian of public morals
  2. 2a person whose job is to take care of a building such as a school or an apartment building synonym janitor see also caretaker
See the Oxford Advanced Learner's Dictionary entry: custodian