As nouns the difference between watchman and pacemaker
is that watchman is one set to watch; a person who keeps guard, especially one who guards a building, or the streets of a city, by night while pacemaker is one who sets the pace in a race, to guide the others.
watchman
English
Noun
(watchmen)
One set to watch; a person who keeps guard, especially one who guards a building, or the streets of a city, by night.
Derived terms
* night watchman
Related terms
* security guard
pacemaker
English
Noun
(en noun)(wikipedia)
One who sets the pace in a race, to guide the others.
(anatomy) A set of nerves which stimulate the heart to beat.
(hence, medicine) A medical implement that is used to stimulate a heart to beat by simulating the action of the natural pacemaker.