wedding ceremony vs wedding

wedding ceremony and wedding both are nouns.

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

As nouns, wedding ceremony and wedding are synonyms defined as:

wedding ceremony and wedding: the social event at which the ceremony of marriage is performed

Other synonyms of wedding ceremony include hymeneals, nuptials.

wedding ceremony (noun)	wedding (noun)
the social event at which the ceremony of marriage is performed	the act of marrying; the nuptial ceremony
	the social event at which the ceremony of marriage is performed
	a party of people at a wedding