sex offense vs sexual abuse

sex offense and sexual abuse both are nouns.

Word	Noun	Adjective	Verb	Adverb
sex offense	Yes	No	No	No
sexual abuse	Yes	No	No	No

As nouns, sex offense and sexual abuse are synonyms defined as:

sex offense and sexual abuse: a statutory offense that provides that it is a crime to knowingly cause another person to engage in an unwanted sexual act by force or threat

Other synonyms of sex offense include sex crime, sexual assault.

sex offense (noun)	sexual abuse (noun)
a statutory offense that provides that it is a crime to knowingly cause another person to engage in an unwanted sexual act by force or threat	a statutory offense that provides that it is a crime to knowingly cause another person to engage in an unwanted sexual act by force or threat