firstly Synonyms

first first of all first off foremost in the first place first time first thing basically first up in essence first and foremost essentially at first 1stly in the main in the first instance leadingly prominently forward above all else start with before all else At the beginning at the start begin with Before anything else at the bottom at the outset in the beginning to begin with preferentially earlier at bottom mainly introductorily intrinsically initially fundamentally foremostly ahead especially elementally early chiefly before mostly olla originally first and last most importantly above all