Approaching
Approaching adjective - Being soon to appear or take place.
Upon and approaching are semantically related. In some cases you can use "Upon" instead an adverb "Approaching".
Upon
Upon preposition - In or into contact with.
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Synonyms for Upon
Approaching and upon are semantically related. Sometimes you can use "Approaching" instead an adverb "Upon".
Both words in one sentence
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After it's finished, music starts up while approaching the Princess, which slowly dies down upon meeting Toad instead.
Source: Video Game / Super Mario Maker - The Ax-Crazy murderous vampire Rip Van Winkle completely falls apart from fear upon just sensing that Alucard is approaching.
Source: Horrifying the Horror -
Upon seeing approaching British soldiers, he loaded a musket and ambushed them, killing one.
Cite this Source
Upon and Approaching. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/approaching/upon
Approaching & Upon. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/approaching/upon>.
Upon or Approaching. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/approaching/upon.
Google Ngram Viewer shows how "approaching" and "upon" have occurred on timeline