As nouns the difference between nightguard and watchman
is that nightguard is a guard worn on the teeth to prevent damage from bruxism during sleep while 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.
nightguard
English
Noun
(
en noun)
(dentistry) A guard worn on the teeth to prevent damage from bruxism during sleep. 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