Keep is one of the most versatile verbs in English with multiple meanings:
1. To continue having or holding something: "Keep the change."
2. To remain in a particular state or condition: "Keep quiet!"
3. To store something in a particular place: "Where do you keep your keys?"
4. To maintain something in good condition: "He keeps his car spotless."
5. To fulfill a promise: "She always keeps her word."
6. In sports: "The goalkeeper keeps goal."
7. Slang usage: "Keep it real" (be authentic)