9
fatten(verb, increase, open, develop, rise)
8
complete(verb, form, part, start, agree)
8
dilate(verb, advance, increase, open, develop)
8
expand(verb, advance, increase, develop, run)
8
pad(verb, increase, open, develop, extend)
7
fill in(verb, phrasal verb, answer, insert)
6
flesh out(verb, expression, start, establish, expand)
6
grow(verb, increase, open, develop, run)
6
round out(verb, expression, phrasal verb, increase, rise)
5
diffuse(verb, increase, open, develop, extend)
5
extend(verb, advance, increase, open, develop)
5
round(verb, part, advance, develop, agree)
5
swell(verb, advance, increase, open, develop)
4
aggrandize(verb, increase, open, develop, extend)
4
continue
4
distend(verb, increase, open, develop, rise)
4
fat
4
increase(verb, advance, open, develop, run)
4
make out(verb, insert)
4
plump(verb, increase, rise, issue, swell)
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APASmart Define. (2016). fill out thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/fill_out/thesaurus/synonyms
ChicagoSmart Define. 2016. "fill out thesaurus" https://smartdefine.org/fill_out/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, fill out thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fill_out/thesaurus/synonyms>.
MLASmart Define. "fill out thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/fill_out/thesaurus/synonyms>