My book translated the sentence "They report the victory by means of a letter" into "Litteris victoriam nuntiant." Why is it litteris, not litterae. In the English sentence, letter was never pluralized. Why is it now? Thank you so much for explaining this.
In the singular, littera means a letter of the alphabet. In the plural, it can mean 1) letters of the alphabet if modified by an adjective such as multae, 2) literature, or 3) a letter (epistle) written to someone.
Are you sure it's litteris, though? It would show up in ablative plural without a preposition to convey the meaning "be means of." How do you spell the ablative plural of that word?