question vs marriage proposal

question and marriage proposal both are nouns.

Word	Noun	Adjective	Verb	Adverb
question	Yes	No	Yes	No
marriage proposal	Yes	No	No	No

As nouns, marriage proposal is a hypernym of question; that is, marriage proposal is a word with a broader meaning than question:

Other hypernyms of question include marriage offer, proposal, proposal of marriage.

question (noun)	marriage proposal (noun)
uncertainty about the truth or factuality or existence of something	an offer of marriage
an instance of questioning
the subject matter at issue
a formal proposal for action made to a deliberative assembly for discussion and vote
a sentence of inquiry that asks for a reply
an informal reference to a marriage proposal

question (verb)	marriage proposal (verb)
pose a question
challenge the accuracy, probity, or propriety of
place in doubt or express doubtful speculation
pose a series of questions to
conduct an interview in television, newspaper, and radio reporting