commentary

As nouns the difference between commentary and correspondence

is that commentary is a series of comments or annotations; especially, a book of explanations or expositions on the whole or a part of some other work while correspondence is friendly discussion.

As nouns the difference between commentary and recount

is that commentary is a series of comments or annotations; especially, a book of explanations or expositions on the whole or a part of some other work while recount is retelling, narration, rendering or recount can be a counting again, as of votes.

As a verb recount is

to tell over; to relate in detail; to recite; to tell or narrate the particulars of or recount can be to count or reckon again.

As a noun commentary

is a series of comments or annotations; especially, a book of explanations or expositions on the whole or a part of some other work.

As a proper noun Gemara is

part of the Talmud, comprising rabbinical analysis of and commentary on the Mishnah.

As nouns the difference between commentary and backword

is that commentary is a series of comments or annotations; especially, a book of explanations or expositions on the whole or a part of some other work while backword is a contention, retort, or reply.

As nouns the difference between commentary and metatextuality

is that commentary is a series of comments or annotations; especially, a book of explanations or expositions on the whole or a part of some other work while metatextuality is a form of intertextual discourse in which one text makes critical commentary on another.