|1.||a letter, esp one that is long, formal, or didactic|
|2.||a literary work in letter form, esp a dedicatory verse letter of a type originated by Horace|
|[Old English epistol, via Latin from Greek epistolē, from epistellein to send to, from stellein to prepare, send]|
a composition in prose or poetry written in the form of a letter to a particular person or group
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