Prefix means to modify a words meaning for example uninterested un is the prefix Suffix means the second part of the word for example passage and age is the suffix and another example is contraband and band is the suffix
A prefix is a stem that can be applied to the beginning of words to add a certain meaning, whereas a suffix is applied to the ends of words to add a certain meaning.
For example, a prefix could be <em>un. </em>When you add <em>un</em> to the beginning of a word, it reverses the meaning of said word (such as in unable or unhappy).
A suffix could be <em>-ness. </em>Adding this to the end of a word makes it a noun. For example, foolishness and happiness are words with this suffix.