Chinese edit

 
boundary; scope; extent
boundary; scope; extent; circles; group; kingdom (taxonomy)
 
head; chief; first (occasion)
head; chief; first (occasion); first (thing); measure word for poems
simp. and trad.
(界首)
 
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Proper noun edit

界首

  1. () Jieshou (a county-level city in Fuyang, Anhui, China)