“On top” by itself is not a preposition, but it is part of a prepositional phrase when combined with “of” (“on top of”), which functions as a preposition.
Uses of “On Top Of” as a Prepositional Phrase:
- Indicating Position (Above Something)
- The plates are on top of the counter.
- He placed the garnish on top of the dish.
- Indicating Superiority or Advantage (Figurative Use)
- She is always on top of her work.
- The restaurant stays on top of food trends.
Why “On Top” Alone Is Not a Preposition
- “On” is a preposition (e.g., on the table).
- “Top” is a noun (meaning the highest point or uppermost part of something).
- “On top of” is the full prepositional phrase, where “on top” functions as part of the phrase, but “of” is the actual preposition connecting it to a noun.
Conclusion
- “On top” alone is not a preposition; it is a combination of a preposition (“on”) and a noun (“top”).
- “On top of” is a prepositional phrase that functions as a preposition.
Thus, “on top” is not a preposition, but “on top of” is a prepositional phrase.
