A mortal is someone who will eventually die.
When we say "mortal," we usually mean that something or someone has a limited lifespan. People are mortal, but so are animals and objects like cars or buildings. For example, if you're talking about a beautiful old house that's been around for decades, you might call it a "mortal" building because it will eventually wear out and need to be replaced. The word "mortal" can also describe things that have a limited time frame, like a deadline that is mortal – in other words, it will soon pass.
A human; someone susceptible to death.
Example: Her wisdom was beyond that of a mere mortal.
Susceptible to death by aging, sickness, injury, or wound; not immortal.
Mortally; enough to cause death.
Example: It's mortal cold out there.
