What is a Romance language?

One of the biggest differences between Romance languages and other languages is their use of inflection. Inflection is a way of changing a word to indicate its grammatical function, and it's something that Latin did a lot of. For example, the Latin word for "book" is "liber," but if you want to say "the book," you would change it to "librum." This might seem like a small thing, but it can make learning a Romance language quite difficult for speakers of other languages.