A more thorough explanation:

To harass means to bother, threaten, or insult someone repeatedly and without a good reason. This can happen in many ways, like using mean words, making rude gestures, or touching someone in a way they don't like. Harassment is always unwanted and can make people feel scared, upset, or uncomfortable.

For example, if someone keeps calling you and saying mean things, that's harassment. If someone makes fun of you because of your race, religion, or gender, that's also harassment. In the workplace, if someone touches you in a way that makes you uncomfortable or keeps making sexual comments, that's harassment too.

Harassment is not okay and can be against the law. It's important to speak up if you're being harassed or if you see someone else being harassed.