40 entries under addition topic. ×

94
furthermore(adverb, further, increase, additional, also)
79
besides(adverb, further, increase, additional, also)
78
too(adverb, further, increase, additional, also)
74
likewise(adverb, increase, further, additional)
69
also(noun, adverb, increase, spare, extra)
66
yet(adverb, further, increase, additional, then)
64
more(adverb, increase, further, additional)
47
again(adverb, further, increase, additional, more)
46
further(adverb, increase, additional, also, more)
24
either(adverb, conjunction, increase, further)
22
into the bargain(noun, expression, idiom, adverb, new)
17
above and beyond(expression, idiom, new, extra)
17
boot(noun, verb, expression, new, spare)
14
and(adverb, conjunction, spare, also)
14
with that(expression, conjunction, besides, too)
10
over and above(verb, expression, idiom, adverb, phrasal verb)
9
not only that(expression, adverb, extra, also)
9
still(adverb, increase, extra, however)
9
therewith(adverb, conjunction, extra, also)
8
item(adverb, increase, further, additional)
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APASmart Define. (2016). moreover thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/moreover/thesaurus/synonyms
ChicagoSmart Define. 2016. "moreover thesaurus" https://smartdefine.org/moreover/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, moreover thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/moreover/thesaurus/synonyms>.
MLASmart Define. "moreover thesaurus" 30 March 2016. Web. 25 September 2026. <https://smartdefine.org/moreover/thesaurus/synonyms>