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Noun aurora has 3 senses
- dawn, dawning, morning, aurora, first light, daybreak, break of day, break of the day, dayspring, sunrise, sunup, cockcrow - the first light of day; "we got up before dawn"; "they talked until morning"
 
--1 is a kind of hour, time of day 
 - aurora - an atmospheric phenomenon consisting of bands of light caused by charged solar particles following the earth's magnetic lines of force
 
--2 is a kind of atmospheric phenomenon 
--2 has part: streamer
 --2 has particulars: 
- Aurora - (Roman mythology) goddess of the dawn; counterpart of Greek Eos
 
--3 is a kind of Roman deity 
   
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