billystick vs truncheon

billystick and truncheon both are nouns.

Word	Noun	Adjective	Verb	Adverb
billystick	Yes	No	No	No
truncheon	Yes	No	No	No

As nouns, billystick and truncheon are synonyms defined as:

billystick and truncheon: a short stout club used primarily by policemen

Other synonyms of billystick include baton, billy, billy club, nightstick.

billystick (noun)	truncheon (noun)
a short stout club used primarily by policemen	a short stout club used primarily by policemen