*To endure danger (or do dangerous things)
The true definition is: A person who fears pain, endure danger or do unpleasent things.
Truly I think a coward is a person who will not stick up for people who are getting harrassed, teased, or bullied. Also a coward in my eyes, and probably many others, is somebody who will not do a certain thing because of the possibility of something bad happening. Of course we all have those cowardly times. I hope this helps you. Btw add me if you wish =D