40 entries under swell topic. ×

21
wave(noun, current, surge, convolution)
7
fluctuation(noun, wave, ripple, oscillation)
6
ripple(noun, movement, beat, sign, rush)
5
roll(noun, movement, turn, sign, rush)
4
beat(noun, stroke, throb, rhythm)
4
surge(noun, movement, beat, line, rush)
4
billow(noun, movement, sign, line, rush)
4
pulse(noun, beat, evolution, throb)
3
breaker(noun, movement, sign, line, rush)
3
heave(noun, movement, sign, rush)
3
roller(noun, movement, sign, rush)
3
wash(noun, rush, wave)
2
ebb and flow(noun, expression, idiom, rush)
2
meter(noun, beat, stroke, throb)
2
surf(noun, wave, surge, ripple)
2
surging(noun, rush, roll)
2
tide(noun, movement, sign, line, rush)
1
crest(noun, movement, sign, line, rush)
1
curl(noun, movement, turn, sign, rush)
1
current(noun, movement, sign, rush)
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APASmart Define. (2015). undulation thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/undulation/thesaurus/synonyms
ChicagoSmart Define. 2015. "undulation thesaurus" https://smartdefine.org/undulation/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, undulation thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/undulation/thesaurus/synonyms>.
MLASmart Define. "undulation thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/undulation/thesaurus/synonyms>