* To pray (in a religious sense): prier
* To beg or plead: supplier, implorer, demander
Here are some examples:
* Elle prie tous les jours. (She prays every day.)
* Je vous prie de m'aider. (I beg you to help me.)
* Il a supplié le juge de lui accorder la liberté conditionnelle. (He begged the judge to grant him parole.)
So, "prier" is the most common translation for "pray" in most cases.