High up
High up adverb - At a great altitude.
Up in the sky and high up are semantically related. In some cases you can use "Up in the sky" instead an adverb phrase "High up".
Up in the sky
High up and up in the sky are semantically related. You can use "High up" instead an adverb phrase "Up in the sky".
Mutual synonyms
Cite this Source
Up in the sky and High up. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/high_up/up_in_the_sky
High up & Up in the sky. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/high_up/up_in_the_sky>.
Up in the sky or High up. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/high_up/up_in_the_sky.