4
nourish(verb, give, maintain, deliver, sustain)
4
nurse(verb, give, maintain, deliver, sustain)
4
nurture(verb, give, maintain, deliver, sustain)
4
plump out(verb, expression, phrasal verb)
4
suckle(verb, feed, serve, nurse, nourish)
4
thrive(verb, grow, feed, stuff, flourish)
3
bear fruit(expression, idiom, rise, grow, score)
3
blow up(verb, expression, phrasal verb, increase, open)
3
boost(verb, increase)
3
elaborate(verb, increase, open, develop, extend)
3
elevate(verb, increase)
3
fructify
3
heighten(verb, increase, open, develop, rise)
3
make an improvement(expression, idiom)
3
multiply(verb, increase, open, develop, rise)
3
pad(verb, increase, open, develop, extend)
3
prosper(verb, grow, succeed, flourish, thrive)
3
raise(verb, increase)
3
stretch(verb, increase, open, develop, extend)
3
upgrade(verb, increase)
11 years ago|4.8k views|share |citing 
APASmart Define. (2015). fatten thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/fatten/thesaurus/synonyms
ChicagoSmart Define. 2015. "fatten thesaurus" https://smartdefine.org/fatten/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, fatten thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/fatten/thesaurus/synonyms>.
MLASmart Define. "fatten thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/fatten/thesaurus/synonyms>