Er
Er noun - A trivalent metallic element of the rare earth group; occurs with yttrium.
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Synonyms for Er
Um and er are semantically related in emphatic exclamation topic. In some cases you can use "Um" instead a noun "Er".
Um
Mutual synonyms
Cite this Source
Um and Er. (2016). Retrieved 2026, August 18, from https://thesaurus.plus/related/er/um
Er & Um. N.p., 2016. Web. 18 Aug. 2026. <https://thesaurus.plus/related/er/um>.
Um or Er. 2016. Accessed August 18, 2026. https://thesaurus.plus/related/er/um.
Google Ngram Viewer shows how "er" and "um" have occurred on timeline