humbug vs hokum

humbug and hokum both are nouns.

Word	Noun	Adjective	Verb	Adverb
humbug	Yes	No	Yes	No
hokum	Yes	No	No	No

As nouns, hokum is a hypernym of humbug; that is, hokum is a word with a broader meaning than humbug:

Other hypernyms of humbug include bunk, meaninglessness, nonsense, nonsensicality.

humbug (noun)	hokum (noun)
something intended to deceive; deliberate trickery intended to gain an advantage	a message that seems to convey no meaning
pretentious or silly talk or writing
communication (written or spoken) intended to deceive

humbug (verb)	hokum (verb)
trick or deceive