At altitude
High up and at altitude are semantically related. In some cases you can use "High up" instead an adverb phrase "At altitude".
High up
High up adverb - At a great altitude.
At altitude and high up are semantically related. You can use "At altitude" instead an adverb phrase "High up".
Mutual synonyms
Cite this Source
High up and At altitude. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/at_altitude/high_up
At altitude & High up. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/at_altitude/high_up>.
High up or At altitude. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/at_altitude/high_up.
Google Ngram Viewer shows how "at altitude" and "high up" have occurred on timeline