Definition of 序でに (ついでに)
つい
                        序でに
ついでに
tsuideni
Common word
adverb
•
                
incidentally, taking the opportunity, while (you) are at it, on the occasion(usually kana)
Other readings:
                ついでに《序に》
                Related Kanji
| 序 | preface, beginning, order, precedence, occasion, chance, incidentally |