Preposition:
* Definition: A word that shows the relationship between a noun or pronoun and another word in the sentence.
* Example: "The cat sat with the dog." ("With" shows the relationship between "cat" and "dog").
Conjunction:
* Definition: A word that connects words, phrases, or clauses.
* Example: "She went to the party with her friends." ("With" connects the phrase "She went to the party" with the phrase "her friends.")
To determine whether "with" is functioning as a preposition or conjunction, look at its role in the sentence and see what it is connecting.