7
twice(adverb, twofold)
5
double(adverb, twofold)
4
twofold
3
dually
2
duplexly
2
duplicately
2
in two ways(expression, idiom, adverb)
2
increased(adverb, twofold)
2
redoubled(adverb, twofold)
2
secondly
2
twinly
2
twofoldly
1
alternately
1
ambiguously
1
bilaterally
1
binarily
1
duply
1
geminately
1
redoubles
1
redoubling
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APASmart Define. (2015). doubly thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/doubly/thesaurus/synonyms
ChicagoSmart Define. 2015. "doubly thesaurus" https://smartdefine.org/doubly/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, doubly thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/doubly/thesaurus/synonyms>.
MLASmart Define. "doubly thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/doubly/thesaurus/synonyms>