| Noun | 1. | Charles - the eldest son of Elizabeth II and heir to the English throne (born in 1948) Synonyms: Prince Charles |
| 2. | Charles - French physicist and uathor of Charles's law which anticipated Gay-Lussac's law (1746-1823) Synonyms: Jacques Alexandre Cesar Charles, Jacques Charles | |
| 3. | Charles - a river in eastern Massachusetts that empties into Boston Harbor and that separates Cambridge from Boston Synonyms: Charles River |