Synonyms to first thing

ab ovo, ab initio, aborigine, afresh, again, anew, as new, at first, at the start, basal, basic, before everything, chiefly, constituent, constitutive, de novo, elemental, elementary, essential, first, first and foremost, firstly, freshly, from scratch, from the beginning, fundamental, gut, in the beginning, initially, mainly, material, new, newly, of the essence, once more, original, originally, primal, primarily, primary, primitive, primo, principally, radical, substantial, substantive, underlying, a fortiori, above all, all in all, all the more, all things considered, almost entirely, altogether, approximately, as a rule, as a whole, as an approximation, as per usual, as things go, as usual, at large, broadly, broadly speaking, by and large, commonly, customarily, dominantly, effectually, especially, essentially, even, ever so, first of all, generally, generally speaking, habitually, in chief, in general, in particular