Most women and girls have experienced some form of street harassment, and in many cases this behaviour goes unreported.

But what exactly do we mean when we talk about harassment?

Video journalist: Charlie Newland

BBC 100 Women names 100 influential and inspirational women around the world every year. In 2017, we're challenging them to tackle four of the biggest problems facing women today - the glass ceiling, female illiteracy, harassment in public spaces and sexism in sport.

With your help, they'll be coming up with real-life solutions and we want you to get involved with your ideas. Find us on Facebook, Instagram and Twitter and use #100Women