Hello
Hello noun - An expression of goodwill upon meeting.
Um
Hello and um are semantically related in emphatic exclamation topic. You can use "Hello" instead a noun "Um".
Mutual synonyms
Cite this Source
Um and Hello. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/hello/um
Hello & Um. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/hello/um>.
Um or Hello. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/hello/um.
Google Ngram Viewer shows how "hello" and "um" have occurred on timeline