sexual abuse doesn't neccasary need to have violence involved in it. it could simply be taking advantage of someone who doesn't know better. for instance, luring a child into having sex, having sex with a retard. sexual harassment isn't going against someone's will, but rather doing something that they are offended by. examples: touching a girl's ass or breast, giving inappropriate sexual comments on one's look or behavior, implying that you wish to do something sexual to someone. it doesn't neccesarily involve violence. violence means using brute force to achieve something... or not. examples: hitting someone, threatening someone, threatening someone with a gun or knife, stabbing or shooting someone. rape involves using brute force in order to do something sexual to someone. thus, a combination of violence and sexual abuse. kicking someone's ass is not rape, just like having sex with someone is not violence. when you use a form of violence to achieve something sexual, it is rape. that's what i think, anyway.