cant vs meaninglessness

cant and meaninglessness both are nouns.

Word	Noun	Adjective	Verb	Adverb
cant	Yes	No	Yes	No
meaninglessness	Yes	No	No	No

As nouns, meaninglessness is a hypernym of cant; that is, meaninglessness is a word with a broader meaning than cant:

Other hypernyms of cant include bunk, hokum, nonsense, nonsensicality.

cant (noun)	meaninglessness (noun)
two surfaces meeting at an angle different from 90 degrees	the quality of having no value or significance
a characteristic language of a particular group (as among thieves)	a message that seems to convey no meaning
stock phrases that have become nonsense through endless repetition
insincere talk about religion or morals
a slope in the turn of a road or track; the outside is higher than the inside in order to reduce the effects of centrifugal force

cant (verb)	meaninglessness (verb)
heel over