- CharlesA male given name from the Germanic languages.
- carlA rude, rustic man; a churl.
- carolA round dance accompanied by singing.
- carolineSynonym of Carolean (“relating to the time of Kings Charles I and II of England or Charles III of the United Kingdom, or of the kings themselves”).
- CarloA male given name from Italian, equivalent to English Charles.
- carolinA former gold coin of Germany
- CarolusAn old English gold coin, worth 20 (or later 23) shillings.
- CaroleanPertaining to a person named Charles or its variants and cognates; or places, things, or eras so named.
- Carolus dollarA Spanish-American peso or piece of eight issued by Charles III (1759–88) and Charles IV (1788–1808) of Spain.