Synonyms: Epistle
Definition: a book of the New Testament written in the form of a letter from an Apostle
Similar words: book
Definition: a major division of a long written composition
Usage: the book of Isaiah
Synonyms: epistle
Definition: a specially long, formal letter
Similar words: letter, missive
Definition: a written message addressed to a person or organization
Usage: mailed an indignant letter to the editor