Showing the highest position
Use at the top of to describe a location at the highest point.
Top appears in several fixed expressions. Some combinations describe position, while others describe movement, rank, or coverage.
Use at the top for position, on top of for something placed above another thing, from top to bottom for full coverage, and top of before a noun phrase. To top is usually part of an infinitive verb, not a fixed noun phrase.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
Use at the top of to describe a location at the highest point.
Use on top of when one thing is above and touching another thing.
Use from top to bottom to mean completely or throughout.
Use the top of before a noun to identify its highest part.
The same subject can take different constructions because each sentence answers a different question.
Some combinations appear in real text but do not mean what learners often assume.
On top usually suggests contact with a surface. Use at the top for general position.
✕ Our apartment is on top of the hill. ✓ Our apartment is at the top of the hill.Top usually takes of before a noun.
✕ the top the ladder ✓ the top of the ladderFrom top to bottom describes full coverage, not a single position.
✕ She waited from top to bottom of the stairs. ✓ She waited at the top of the stairs.To top is normally an infinitive verb phrase.
✕ We met at to top. ✓ We met at the top.Choose the expression that matches the intended meaning.
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Both are correct, but they have different meanings. On top of usually means physically above something, while at the top of means at the highest point.
Usually use the top of before a noun, such as the top of the page.
It means completely or throughout the whole thing.
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