1. Remain in the same place.
2. Remain in a specified state or position.
3. Stop, delay, or prevent (something), in particular, suspend or postpone (judicial proceedings) or refrain from pressing (charges).
4. A period of staying somewhere, in particular of living somewhere temporarily as a visitor or guest.
5. A device used as a brace or support.
Plural noun: Stays.
Verb forms: Stay, Stayed, Stayed.
Stay with me till he comes back.