High up and High

High up

High up adverb - At a great altitude.

High is a synonym for high up. In some cases you can use "High" instead the phrase "High up" as an adverb or an adjective or a noun.

High

High adverb - At a great altitude.
Usage example: he climbed high on the ladder

High up is a synonym for high in at great height topic. You can use "High up" instead the word "High" as an adverb or an adjective.

Nearby Word: highly
Cite this Source
High and High up. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/high_up/high
High up & High. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/high_up/high>.
High or High up. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/high_up/high.
Google Ngram Viewer shows how "high up" and "high" have occurred on timeline