Synonyms to back answer

acknowledgment, abject apology, acceptance, acknowledgments, acquittance, admission, allowance, answer, answering, antiphon, apology, appreciation, avowal, back, back matter, back talk, backchat, bastard title, benediction, bibliography, billet, blurb, boost, breast-beating, buildup, business letter, by-line, canceled check, catch line, catchword, chit, citation, cognizance, colophon, comeback, commendation, communication, concession, confession, contents, contents page, contrition, copyright page, credit, credit line, crediting, declaration, dedication, discharge, dispatch, due, echo, endleaf, endpaper, endsheet, epistle, errata, evasive reply, excuse, favor, flyleaf, folio, fore edge, foreword, front matter, good word, grace, half-title page, head, honorable mention, hymn, hype, imprint, index, inscription, introduction, leaf, letter, line, makeup, mea culpa, message, missive, note, owning, owning up, paean, page, penitence, plug, praise, prayer of thanks, preface, preliminaries, profession, promotion, puff, quittance, reaction, ready reply, receipt, receipt in full, recognition, recto, reference,