Behind
Behind adjective - Not arriving, occurring, or settled at the due, usual, or proper time.
Upon and behind are semantically related in over topic. In some cases you can use "Upon" instead a preposition "Behind", when it comes to topics like to.
Upon
Upon preposition - In or into contact with.
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Synonyms for Upon
Behind and upon are semantically related in over topic. Sometimes you can use "Behind" instead a preposition "Upon", if it concerns topics such as to.
Both words in one sentence
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This is made even creepier by the brief tracking shot over her shoulder, which upon first viewing lends the sensation that we're about to see someone come up behind her.
Source: Half-Empty Two-Shot -
The car itself doesn't explode - however, the wall has hydrogen fuel cells behind it and upon impact, those do explode, ultimately causing the building to burn down.
Source: Film / Quantum of Solace - Emphasized in one episode of Power Rangers Turbo where Bulk and Skull (who are currently monkeys, due to the curse inflicted upon them in an earlier episode) notice the left-behind sandwiches and rush over to eat them.
Cite this Source
Upon and Behind. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/behind/upon
Behind & Upon. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/behind/upon>.
Upon or Behind. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/behind/upon.
Google Ngram Viewer shows how "behind" and "upon" have occurred on timeline