17
begin with(adverb, first, mainly, firstly)
12
first and foremost(importance, beginning, firstly, expression, idiom)
9
first(adverb, top, main, mainly, firstly)
8
firstly(adverb, top, main, first, off)
6
beyond everything(expression, all, behind, every)
6
above(adverb, top, main, first)
6
above all(adverb, top, main, first)
6
even(adverb, top, main, first)
6
first off(expression, adverb, top, main, first)
6
in the first instance(expression, idiom, adverb, top, main)
5
before everything(adverb, top, main, first)
5
chiefly(adverb, top, main, first, mainly)
5
especially(adverb, top, main, first, mainly)
4
ever so(adverb, top, main, first)
3
foremost(adverb, top, main, first, immediately)
3
mostly(adverb, mainly, firstly, before a time)
3
particularly(adverb, mainly, firstly, before a time)
3
predominantly(adverb, mainly, firstly, before a time)
2
primarily(adverb, first, particularly, generally, mainly)
2
in the first place(expression, idiom, adverb, first, particularly)
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APASmart Define. (2015). first of all thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/first_of_all/thesaurus/synonyms
ChicagoSmart Define. 2015. "first of all thesaurus" https://smartdefine.org/first_of_all/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, first of all thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/first_of_all/thesaurus/synonyms>.
MLASmart Define. "first of all thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/first_of_all/thesaurus/synonyms>