# on top of

> English word · Preposition

## Definitions
1. Atop.
2. Very close to, in any orientation or in time.
3. In addition to something else.
4. Fully informed about, and in control of, something; up to speed with.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/on-top-of