* Adverb: "The sun is shining out." (Describing the direction of the sun)
* Preposition: "He walked out the door." (Showing location or direction)
* Adjective: "The out fielders caught the ball." (Describing a position in a field)
* Interjection: "Out! The game is over." (Expressing surprise or excitement)
To determine the part of speech of "out", look at its function within the sentence.