A prefix is added to the beginning of a word to alter its meaning.
Right.
That's correct! A prefix is a group of letters that is added to the beginning of a word to change its meaning. It can be considered as a kind of word part or an affix. Adding a prefix to a base word can create a new word with a different meaning.
For example, let's take the base word "do." If we add the prefix "un-" to it, we get the word "undo." In this case, the prefix "un-" changes the meaning of the base word "do" to indicate the opposite action. So, while "do" means to perform an action, "undo" means to reverse or cancel that action.
Prefixes can be found in many English words, and they can be used to modify adjectives, verbs, nouns, and other types of words. Some common prefixes include "re-" (again), "pre-" (before), "mis-" (wrongly), and "dis-" (not). By understanding the meaning of different prefixes, you can better comprehend the meaning of words and expand your vocabulary.