Dict: strongs - epistle
Strongs:
H104 @ אגּרא 'iggerâ' ig-er-aw' (Chaldee); of Persian origin; an epistle (as carried by a state courier or postman): - letter.
H107 @ אגּרת 'iggereth ig-eh'-reth Feminine of H104; an epistle: - letter.
H5406 @ נשׁתּון nishtevân nish-tev-awn' Probably of Persian origin; an epistle: - letter.
G1121 @ γράμμα gramma gram'-mah From G1125; a writing that is a letter note6 epistle book etc.; plural learning: - bill learning letter scripture writing written.
G1992 @ ἐπιστολή epistolē ep-is-tol-ay' From G1989; a written message: - epistle letter.