* Prefix: A prefix is a word part that is added to the beginning of a word to change its meaning. Examples:
* unhappy
* pregame
* recycle
* Preposition: A preposition is a word that shows the relationship between a noun or pronoun and another word in the sentence. It often describes location, direction, or time. Examples:
* The cat sat on the mat.
* We walked through the park.
* They arrived before noon.
Key Differences:
* Placement: Prefixes are placed at the beginning of words, while prepositions usually come before a noun or pronoun.
* Function: Prefixes modify the meaning of a word, while prepositions show the relationship between words in a sentence.
Let me know if you'd like more examples!