Meanings
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1
prep
On; resting on the surface of something (a more formal word than 'on').
A vase of flowers stood upon the table.
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2
prep
Immediately after or at the moment of something happening.
Upon his arrival, everyone stood to greet him.
Thesaurus
Etymology
Etymology tree Proto-Indo-European *upó Proto-Germanic *ub Proto-Germanic *upp Proto-West Germanic *upp Old English upp Proto-Indo-European *h₂en-der. Proto-Germanic *an Proto-West Germanic *ana Old English on Old English uppan Middle English upon English upon From Middle English upon, uppon, uppen, from Old English upon, uppon, uppan (“on, upon, up to, against, after, in addition to”), equivalent to up (“adverb”) + on (“preposition”). Cognate with Old Saxon uppan (“upon”), Old High German ūfan, ūffan (“upon”), Icelandic upp á, upp á (“up on, upon”), Swedish uppå (“up on, upon”) (thence Swedis…
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