espousal vs wedding

espousal and wedding both are nouns.

Word	Noun	Adjective	Verb	Adverb
espousal	Yes	No	No	No
wedding	Yes	No	No	No

As nouns, wedding is a hypernym of espousal; that is, wedding is a word with a broader meaning than espousal:

Other hypernyms of espousal include marriage, marriage ceremony.

espousal (noun)	wedding (noun)
the act of accepting with approval; favorable reception	the act of marrying; the nuptial ceremony
archaic terms for a wedding or wedding feast	the social event at which the ceremony of marriage is performed
the act of becoming betrothed or engaged	a party of people at a wedding