Flee (verb)

1. Run away from a place, situation, or person in order to escape danger or difficulty.
2. To avoid or escape from something unpleasant or undesirable.

Origin:

Old english flēon "take flight, escape", of germanic origin; related to dutch vlieden and german fliehen.

Examples:

1. They had to flee the country due to war.
2. He had to flee the city to escape persecution.
3. She fled the scene of the accident.
4. He would flee at the first sign of trouble.
5. They were forced to flee their homes due to the flood.