high up

1. 1.

   at a great altitude

   “he climbed high on the ladder”

   Synonymshigh

Questions about high up

What does high up mean?

high up means "at a great altitude".

What is another word for high up?

Close synonyms include high. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is high up a common word?

high up is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.