Choose the perfect synonym or antonym for the word Shows something happening because of or immediately after an event or action
Upon
/ə'pɔn/Synonyms:
Antonyms:
Examples:
The decision depends upon you.Upon arrival, she called her friend.
Etymology:
Middle English, from Old English uppan, from up + on; akin to Old High German ūfan upon, Greek hypo under.
Usage Statistics:
142 mentions per 1 million words 
Hint: Frequency according to COCA
Very Often
Hint: Frequency according to COCA
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