Princeton's WordNet

1. Lawrence, Saint Lawrence, St. Lawrence, Laurentius(noun)

   Roman martyr; supposedly Lawrence was ordered by the police to give up the church's treasure and when he responded by presenting the poor people of Rome he was roasted to death on a gridiron (died in 258)

2. Saint Lawrence, Saint Lawrence River, St. Lawrence, St. Lawrence River(noun)

   a North American river; flows into the Gulf of Saint Lawrence and the North Atlantic