2
pop out(expression, adjective, swell, bulky, sag)
2
pout(verb, increase, rise, issue, swell)
2
puff(noun, verb, increase, rise, issue)
2
race(noun, verb, move, act, movement)
2
retch(verb, swell, puff, breathe, groan)
2
rise up(verb, expression, phrasal verb, swell, fill)
2
round out(verb, expression, increase, rise, issue)
2
sag(verb, adjective, swell, expand, large)
2
sea
2
send
2
speed(noun, verb, move, act, movement)
2
spurt(noun, verb, move, act, movement)
2
surf(noun, rush, swell, flow, wave)
2
swell out
2
tidal wave(expression, idiom)
2
trough
2
vapor(noun, gloom, obscurity, darkness, puff)
2
vapour
2
wavelet
2
wavy
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APASmart Define. (2016). billow thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/billow/thesaurus/synonyms
ChicagoSmart Define. 2016. "billow thesaurus" https://smartdefine.org/billow/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, billow thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/billow/thesaurus/synonyms>.
MLASmart Define. "billow thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/billow/thesaurus/synonyms>