Yap can refer to different things depending on the context. Here are some possible meanings of Yap:

1. Yap is an island group located in the Caroline Islands of the western Pacific Ocean, a part of Yap State. The name "Yap" in recent years has come to also refer to the state within the Federated States of Micronesia, inclusive of the Yap Main Islands and its various outer islands, the Yap Neighboring Islands. For specifying the island group, the name Yap Main Islands is most exact.

2. Yap is a verb that means to talk in a shrill insistent way: chatter.

3. YAP (Youth Advocate Programs) is a high-impact social justice nonprofit that provides community-based alternatives to youth incarceration, congregate placements, and neighborhood violence. YAP provides young people, adults, and their families with intensive support right from where they live, learn, work, and play through their YAPWrap model. Their approach is family-focused, and they work with the young person and their entire family. YAP is making a positive difference in the lives of young people, families, and within the systems that support them.