71 entries under extension topic. ×

3
into the bargain(expression, addition, inclusion)
3
more than that(expression, addition, extra, supplement)
3
not only that(addition, expression, conjunction, connecting)
3
not to mention(expression, addition, inclusion)
3
on top of(expression, addition, inclusion)
3
together with(addition, expression, conjunction, connecting)
3
what's more(expression, addition, inclusion)
3
what is more(addition, conjunction, expression, inclusion)
1
above(adverb, addition, inclusion)
1
accessorily(adverb, addition, inclusion)
1
along(adverb, addition, inclusion)
1
auxiliarily(adverb, addition, inclusion)
1
bar(adverb, addition, inclusion)
1
barring(adverb, addition, inclusion)
1
beside(adverb, addition, inclusion)
1
boot(expression, addition, inclusion)
1
by way of addition(expression, addition, inclusion)
1
complementarily(adverb, addition, inclusion)
1
conjointly(adverb, addition, inclusion)
1
even more(expression, addition, inclusion)
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APASmart Define. (2016). in addition thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/in_addition/thesaurus/synonyms
ChicagoSmart Define. 2016. "in addition thesaurus" https://smartdefine.org/in_addition/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, in addition thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/in_addition/thesaurus/synonyms>.
MLASmart Define. "in addition thesaurus" 29 March 2016. Web. 28 September 2026. <https://smartdefine.org/in_addition/thesaurus/synonyms>