janitor

As nouns the difference between warden and janitor

is that warden is a guard or watchman while janitor is someone who looks after the maintenance and cleaning of a public building.

As a proper noun Warden

is {{surname|lang=en}.

As nouns the difference between plumber and janitor

is that plumber is one who works in or with lead while janitor is someone who looks after the maintenance and cleaning of a public building.

As nouns the difference between janitor and guard

is that janitor is someone who looks after the maintenance and cleaning of a public building while guard is a person who, or thing that, protects or watches over something.

As a verb guard is

to protect from danger; to secure against surprise, attack, or injury; to keep in safety; to defend.

As nouns the difference between greeter and janitor

is that greeter is a person who greets people on their arrival while janitor is (chiefly|us) someone who looks after the maintenance and cleaning of a public building.

As a noun janitor is

(chiefly|us) someone who looks after the maintenance and cleaning of a public building.

As a noun janitor is

(chiefly|us) someone who looks after the maintenance and cleaning of a public building.

As nouns the difference between janitor and janitoring

is that janitor is (chiefly|us) someone who looks after the maintenance and cleaning of a public building while janitoring is the work of a janitor.