6
enrich(improvement, plump)
6
maximize(verb, increase)
6
thicken(verb, increase, open, develop, extend)
5
advance(verb, increase, grow, flourish, thrive)
5
aggrandize(verb, increase, open, develop, extend)
5
build up(verb, expression, phrasal verb, grow, feed)
5
develop(verb, increase, open, extend, spread)
5
dilate(verb, increase, open, develop, rise)
5
fill(verb, give, maintain, deliver, sustain)
5
flesh out(verb, expression, phrasal verb)
5
flower(verb, advance, rise, grow, score)
5
lengthen(verb, increase, open, develop, extend)
5
put on weight(verb, expression, idiom, grow, nourish)
5
spread(verb, increase, open, develop, extend)
5
widen(verb, increase, open, develop, extend)
4
bloat(verb, increase, open, develop, rise)
4
breast-feed(verb, feed, serve, nurse, nourish)
4
burgeon(verb, increase, open, develop, extend)
4
cram(verb, give, maintain, deliver, sustain)
4
magnify(verb, increase, open, develop, extend)
11 years ago|4.8k views|share |citing 
APASmart Define. (2015). fatten thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/fatten/thesaurus/synonyms
ChicagoSmart Define. 2015. "fatten thesaurus" https://smartdefine.org/fatten/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, fatten thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/fatten/thesaurus/synonyms>.
MLASmart Define. "fatten thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/fatten/thesaurus/synonyms>