THESAURUS
janitor
air warden, attendant, caretaker, castellan, cerberus, char, charwoman, cleaner, cleaner-off, cleaner-up, cleaning lady, cleaning man, cleaning woman, concierge, conservator, curator, custodian, doorkeeper, doorman, forest ranger, game warden, gamekeeper, gatekeeper, governor, guardian, guardian angel, janitress, keeper, lifeguard, lifesaver, next friend, ostiary, porter, prochein ami, ranger, receptionist, shepherd, steward, usher, warden, warder
ROGET THESAURUS
janitor
Stopper
N
stopper, stopple, plug, cork, bung, spike, spill, stopcock, tap, rammer, ram, ramrod, piston, stop-gap, wadding, stuffing, padding, stopping, dossil, pledget, tompion, tourniquet, cover, valve, vent peg, spigot, slide valve,
janitor, doorkeeper, porter, warder, beadle, cerberus, ostiary.