The verb "to stay" means to remain in a particular place, situation or condition. It can also mean to continue doing something despite difficulties or obstacles. For example, one might say "I am going to stay here until I find an answer," indicating that they will persist at their current location until they obtain the desired information. Additionally, it is used as a command to request someone to wait where they are or to pause what they're doing; for instance, if you tell your dog "Stay" while opening the door, you mean for them not to move from that spot until you give them further instructions.