sodomy vs sex activity

sodomy and sex activity both are nouns.

Word	Noun	Adjective	Verb	Adverb
sodomy	Yes	No	No	No
sex activity	Yes	No	No	No

As nouns, sex activity is a hypernym of sodomy; that is, sex activity is a word with a broader meaning than sodomy:

Other hypernyms of sodomy include sex, sexual activity, sexual practice.

sodomy (noun)	sex activity (noun)
intercourse via the anus, committed by a man with a man or woman	activities associated with sexual intercourse
sexual activity between a person and an animal