Meaning of CIRCULAR in English

[noun] [C] - a letter or notice sent to a large number of peopleI always put circulars and other junk mail straight in the bin.Several circulars advertising new shops in the town were delivered with the local newspaper.See also circular at circle (SHAPE). circularize, [UK and ANZ] usually -ise [verb] [T]To sell the tickets it is usually necessary to circularize local organizations. [T]

Cambridge English vocab.      Кембриджский английский словарь.