cus·to·di·an 
/ˌkʌˈstoʊdijən/ noun
plural cus·to·di·ans /ˌkʌˈstoʊdijən/ noun [count] 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 figuratively ▪ The museums are custodians of culture. 2 US : a person who cleans and takes care of a building : janitor
▪ a school custodian
▪ a school custodian
