As a noun pistle is
(obsolete) a written communication; a letter, an epistle.
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Not English
Wikidiffcom has no English definition. It may be misspelled. pistle
English
Noun
(
en noun)
(obsolete) A written communication; a letter, an epistle.
*1526 , (William Tyndale), trans. Bible , Acts XV:
*:When they were departed, they cam to Antioche and gaddred the multitude togedder and delivered the pistle .