General:
* Runaway: This is a common synonym for fugitive, especially when referring to someone who has escaped from custody.
* Escapee: This word emphasizes the act of escaping, and is often used in legal contexts.
* Outlaw: This term implies that someone has been declared an enemy of the law.
* Wanderer: This word suggests someone who is constantly moving and has no fixed home, and can be used in a less negative way.
More specific:
* Deserter: This word applies to someone who has abandoned their military duty.
* Emigrant: This word is used for someone who leaves their country to live permanently in another.
* Exile: This word refers to someone who has been forced to leave their home country.
* Absconder: This word refers to someone who has fled to avoid arrest or legal proceedings.
Informal:
* On the lam: This is a slang term for someone who is trying to avoid the police.
* On the run: This is a more informal synonym for "fugitive."
The best word to use will depend on the specific situation and the intended meaning.